diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 55a3829..248d82d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -29,7 +29,7 @@ jobs:
       run: forge build --sizes --skip test --use solc:${{ env.SOLC_VERSION }}
 
     - name: Run tests
-      run: make SOLC_VERSION=${{ env.SOLC_VERSION }} test
+      run: make SOLC_VERSION=${{ env.SOLC_VERSION }} TEST_UPGRADEABLE=true test
 
     - name: Lint
       run: make lint
diff --git a/Makefile b/Makefile
index 72fef4c..f2bba41 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,6 @@
-SOLC_VERSION ?= 0.8.20
-FORGE ?= forge
+SOLC_VERSION=0.8.20
+FORGE=forge
+TEST_UPGRADEABLE=false
 
 .PHONY: proto-sol
 proto-sol:
@@ -9,9 +10,13 @@ else
 	./solpb.sh
 endif
 
+.PHONY: clean
+clean:
+	@$(FORGE) clean
+
 .PHONY: test
 test:
-	@$(FORGE) test -vvvv --gas-report --ffi --use solc:$(SOLC_VERSION)
+	@TEST_UPGRADEABLE=$(TEST_UPGRADEABLE) $(FORGE) test -vvvv --gas-report --ffi --use solc:$(SOLC_VERSION)
 
 .PHONY: coverage
 coverage:
diff --git a/contracts/LCPClientBase.sol b/contracts/LCPClientBase.sol
index 18a967b..e2827d0 100644
--- a/contracts/LCPClientBase.sol
+++ b/contracts/LCPClientBase.sol
@@ -48,8 +48,11 @@ abstract contract LCPClientBase is ILightClient, ILCPClientErrors {
 
     // --------------------- Immutable fields ---------------------
 
+    /// @dev ibcHandler is the address of the IBC handler contract.
+    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
     address internal immutable ibcHandler;
-    // if developmentMode is true, the client allows the remote attestation of IAS in development.
+    /// @dev if developmentMode is true, the client allows the remote attestation of IAS in development.
+    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
     bool internal immutable developmentMode;
 
     // --------------------- Storage fields ---------------------
@@ -63,6 +66,9 @@ abstract contract LCPClientBase is ILightClient, ILCPClientErrors {
 
     // --------------------- Constructor ---------------------
 
+    /// @custom:oz-upgrades-unsafe-allow constructor
+    /// @param ibcHandler_ the address of the IBC handler contract
+    /// @param developmentMode_ if true, the client allows the enclave debug mode
     constructor(address ibcHandler_, bool developmentMode_) {
         ibcHandler = ibcHandler_;
         developmentMode = developmentMode_;
@@ -77,7 +83,7 @@ abstract contract LCPClientBase is ILightClient, ILCPClientErrors {
 
     // --------------------- Public methods ---------------------
 
-    /// @dev isDevelopmentMode returns true if the client allows the remote attestation of IAS in development.
+    /// @dev isDevelopmentMode returns true if the client allows the enclave debug mode.
     function isDevelopmentMode() public view returns (bool) {
         return developmentMode;
     }
diff --git a/contracts/LCPClientOwnableUpgradeable.sol b/contracts/LCPClientOwnableUpgradeable.sol
new file mode 100644
index 0000000..c0e8827
--- /dev/null
+++ b/contracts/LCPClientOwnableUpgradeable.sol
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: Apache-2.0
+pragma solidity ^0.8.12;
+
+import {LCPClientBase} from "./LCPClientBase.sol";
+import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
+import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
+
+/// @custom:oz-upgrades-unsafe-allow external-library-linking
+contract LCPClientOwnableUpgradeable is LCPClientBase, UUPSUpgradeable, OwnableUpgradeable {
+    /// @custom:oz-upgrades-unsafe-allow constructor
+    constructor(address ibcHandler, bool developmentMode) LCPClientBase(ibcHandler, developmentMode) {}
+
+    function initialize(bytes memory rootCACert) public initializer {
+        initializeRootCACert(rootCACert);
+        __UUPSUpgradeable_init();
+        __Ownable_init(msg.sender);
+    }
+
+    function _authorizeUpgrade(address newImplementation) internal virtual override onlyOwner {}
+}
diff --git a/foundry.toml b/foundry.toml
index 89f42e0..0ab7b70 100644
--- a/foundry.toml
+++ b/foundry.toml
@@ -4,4 +4,9 @@ out = 'out'
 libs = ['lib', 'node_modules']
 optimizer = true
 optimizer_runs = 9_999_999
+via-ir = false
+ffi = true
+ast = true
+build_info = true
+extra_output = ["storageLayout"]
 fs_permissions = [{ access = "read", path = "./"}]
diff --git a/package-lock.json b/package-lock.json
index c323f83..bc3efde 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,10 +12,12 @@
         "@ensdomains/ens-contracts": "1.1.4",
         "@hyperledger-labs/yui-ibc-solidity": "git+https://github.com/hyperledger-labs/yui-ibc-solidity.git#v0.3.29",
         "@openzeppelin/contracts": "^5.0.1",
+        "@openzeppelin/contracts-upgradeable": "^5.0.1",
         "base64": "git+https://github.com/datachainlab/base64.git#4d85607b18d981acff392d2e99ba654305552a97",
         "solidity-datetime": "git+https://github.com/datachainlab/solidity-datetime.git#294fc244973cc5f9ec374713affde12c1403927c"
       },
       "devDependencies": {
+        "@openzeppelin/upgrades-core": "^1.32.3",
         "solhint": "^5.0.0"
       }
     },
@@ -160,11 +162,156 @@
       "resolved": "https://registry.npmjs.org/@leichtgewicht/ip-codec/-/ip-codec-2.0.5.tgz",
       "integrity": "sha512-Vo+PSpZG2/fmgmiNzYK9qWRh8h/CHrwD0mo1h1DzL4yzHNSfWYujGTYsWGreD000gcgmZ7K4Ys6Tx9TxtsKdDw=="
     },
+    "node_modules/@nomicfoundation/slang": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang/-/slang-0.17.0.tgz",
+      "integrity": "sha512-1GlkGRcGpVnjFw9Z1vvDKOKo2mzparFt7qrl2pDxWp+jrVtlvej98yCMX52pVyrYE7ZeOSZFnx/DtsSgoukStQ==",
+      "dev": true,
+      "dependencies": {
+        "@nomicfoundation/slang-darwin-arm64": "0.17.0",
+        "@nomicfoundation/slang-darwin-x64": "0.17.0",
+        "@nomicfoundation/slang-linux-arm64-gnu": "0.17.0",
+        "@nomicfoundation/slang-linux-arm64-musl": "0.17.0",
+        "@nomicfoundation/slang-linux-x64-gnu": "0.17.0",
+        "@nomicfoundation/slang-linux-x64-musl": "0.17.0",
+        "@nomicfoundation/slang-win32-arm64-msvc": "0.17.0",
+        "@nomicfoundation/slang-win32-ia32-msvc": "0.17.0",
+        "@nomicfoundation/slang-win32-x64-msvc": "0.17.0"
+      },
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-darwin-arm64": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-darwin-arm64/-/slang-darwin-arm64-0.17.0.tgz",
+      "integrity": "sha512-O0q94EUtoWy9A5kOTOa9/khtxXDYnLqmuda9pQELurSiwbQEVCPQL8kb34VbOW+ifdre66JM/05Xw9JWhIZ9sA==",
+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-darwin-x64": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-darwin-x64/-/slang-darwin-x64-0.17.0.tgz",
+      "integrity": "sha512-IaDbHzvT08sBK2HyGzonWhq1uu8IxdjmTqAWHr25Oh/PYnamdi8u4qchZXXYKz/DHLoYN3vIpBXoqLQIomhD/g==",
+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-linux-arm64-gnu": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-linux-arm64-gnu/-/slang-linux-arm64-gnu-0.17.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-linux-arm64-musl": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-linux-arm64-musl/-/slang-linux-arm64-musl-0.17.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-linux-x64-gnu": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-linux-x64-gnu/-/slang-linux-x64-gnu-0.17.0.tgz",
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+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-linux-x64-musl": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-linux-x64-musl/-/slang-linux-x64-musl-0.17.0.tgz",
+      "integrity": "sha512-PpYCI5K/kgLAMXaPY0V4VST5gCDprEOh7z/47tbI8kJQumI5odjsj/Cs8MpTo7/uRH6flKYbVNgUzcocWVYrAQ==",
+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-win32-arm64-msvc": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-win32-arm64-msvc/-/slang-win32-arm64-msvc-0.17.0.tgz",
+      "integrity": "sha512-u/Mkf7OjokdBilP7QOJj6QYJU4/mjkbKnTX21wLyCIzeVWS7yafRPYpBycKIBj2pRRZ6ceAY5EqRpb0aiCq+0Q==",
+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-win32-ia32-msvc": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-win32-ia32-msvc/-/slang-win32-ia32-msvc-0.17.0.tgz",
+      "integrity": "sha512-XJBVQfNnZQUv0tP2JSJ573S+pmgrLWgqSZOGaMllnB/TL1gRci4Z7dYRJUF2s82GlRJE+FHSI2Ro6JISKmlXCg==",
+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
+    "node_modules/@nomicfoundation/slang-win32-x64-msvc": {
+      "version": "0.17.0",
+      "resolved": "https://registry.npmjs.org/@nomicfoundation/slang-win32-x64-msvc/-/slang-win32-x64-msvc-0.17.0.tgz",
+      "integrity": "sha512-zPGsAeiTfqfPNYHD8BfrahQmYzA78ZraoHKTGraq/1xwJwzBK4bu/NtvVA4pJjBV+B4L6DCxVhSbpn40q26JQA==",
+      "dev": true,
+      "engines": {
+        "node": ">= 10"
+      }
+    },
     "node_modules/@openzeppelin/contracts": {
       "version": "5.0.2",
       "resolved": "https://registry.npmjs.org/@openzeppelin/contracts/-/contracts-5.0.2.tgz",
       "integrity": "sha512-ytPc6eLGcHHnapAZ9S+5qsdomhjo6QBHTDRRBFfTxXIpsicMhVPouPgmUPebZZZGX7vt9USA+Z+0M0dSVtSUEA=="
     },
+    "node_modules/@openzeppelin/contracts-upgradeable": {
+      "version": "5.0.2",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/contracts-upgradeable/-/contracts-upgradeable-5.0.2.tgz",
+      "integrity": "sha512-0MmkHSHiW2NRFiT9/r5Lu4eJq5UJ4/tzlOgYXNAIj/ONkQTVnz22pLxDvp4C4uZ9he7ZFvGn3Driptn1/iU7tQ==",
+      "peerDependencies": {
+        "@openzeppelin/contracts": "5.0.2"
+      }
+    },
+    "node_modules/@openzeppelin/upgrades-core": {
+      "version": "1.37.1",
+      "resolved": "https://registry.npmjs.org/@openzeppelin/upgrades-core/-/upgrades-core-1.37.1.tgz",
+      "integrity": "sha512-dMQPDoMn1OUZXsCHT1thnAmkZ14v0FNlst5Ej8MIfujOv0k74kUok5XeuNF42fYewnNUYMkkz3PhXU1OIwSeyg==",
+      "dev": true,
+      "dependencies": {
+        "@nomicfoundation/slang": "^0.17.0",
+        "cbor": "^9.0.0",
+        "chalk": "^4.1.0",
+        "compare-versions": "^6.0.0",
+        "debug": "^4.1.1",
+        "ethereumjs-util": "^7.0.3",
+        "minimatch": "^9.0.5",
+        "minimist": "^1.2.7",
+        "proper-lockfile": "^4.1.1",
+        "solidity-ast": "^0.4.51"
+      },
+      "bin": {
+        "openzeppelin-upgrades-core": "dist/cli/cli.js"
+      }
+    },
+    "node_modules/@openzeppelin/upgrades-core/node_modules/minimatch": {
+      "version": "9.0.5",
+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
+      "integrity": "sha512-G6T0ZX48xgozx7587koeX9Ys2NYy6Gmv//P89sEte9V9whIapMNF4idKxnW2QtCcLiTWlb/wfCabAtAFWhhBow==",
+      "dev": true,
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=16 || 14 >=14.17"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
     "node_modules/@pnpm/config.env-replace": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/@pnpm/config.env-replace/-/config.env-replace-1.1.0.tgz",
@@ -230,12 +377,48 @@
         "node": ">=14.16"
       }
     },
+    "node_modules/@types/bn.js": {
+      "version": "5.1.6",
+      "resolved": "https://registry.npmjs.org/@types/bn.js/-/bn.js-5.1.6.tgz",
+      "integrity": "sha512-Xh8vSwUeMKeYYrj3cX4lGQgFSF/N03r+tv4AiLl1SucqV+uTQpxRcnM8AkXKHwYP9ZPXOYXRr2KPXpVlIvqh9w==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/http-cache-semantics": {
       "version": "4.0.4",
       "resolved": "https://registry.npmjs.org/@types/http-cache-semantics/-/http-cache-semantics-4.0.4.tgz",
       "integrity": "sha512-1m0bIFVc7eJWyve9S0RnuRgcQqF/Xd5QsUZAZeQFr1Q3/p9JWoQQEqmVy+DPTNpGXwhgIetAoYF8JSc33q29QA==",
       "dev": true
     },
+    "node_modules/@types/node": {
+      "version": "22.5.5",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.5.5.tgz",
+      "integrity": "sha512-Xjs4y5UPO/CLdzpgR6GirZJx36yScjh73+2NlLlkFRSoQN8B0DpfXPdZGnvVmLRLOsqDpOfTNv7D9trgGhmOIA==",
+      "dev": true,
+      "dependencies": {
+        "undici-types": "~6.19.2"
+      }
+    },
+    "node_modules/@types/pbkdf2": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/@types/pbkdf2/-/pbkdf2-3.1.2.tgz",
+      "integrity": "sha512-uRwJqmiXmh9++aSu1VNEn3iIxWOhd8AHXNSdlaLfdAAdSTY9jYVeGWnzejM3dvrkbqE3/hyQkQQ29IFATEGlew==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
+    "node_modules/@types/secp256k1": {
+      "version": "4.0.6",
+      "resolved": "https://registry.npmjs.org/@types/secp256k1/-/secp256k1-4.0.6.tgz",
+      "integrity": "sha512-hHxJU6PAEUn0TP4S/ZOzuTUvJWuZ6eIKeNKb5RBpODvSl6hp1Wrw4s7ATY50rklRCScUDpHzVA/DQdSjJ3UoYQ==",
+      "dev": true,
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/ajv": {
       "version": "6.12.6",
       "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
@@ -312,12 +495,33 @@
       "integrity": "sha512-3oSeUO0TMV67hN1AmbXsK4yaqU7tjiHlbxRDZOpH0KW9+CeX4bRAaX0Anxt0tx2MrpRpWwQaPwIlISEJhYU5Pw==",
       "dev": true
     },
+    "node_modules/base-x": {
+      "version": "3.0.10",
+      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.10.tgz",
+      "integrity": "sha512-7d0s06rR9rYaIWHkpfLIFICM/tkSVdoPC9qYAQRpxn9DdKNWNsKC0uk++akckyLq16Tx2WIinnZ6WRriAt6njQ==",
+      "dev": true,
+      "dependencies": {
+        "safe-buffer": "^5.0.1"
+      }
+    },
     "node_modules/base64": {
       "name": "base64-sol",
       "version": "1.1.0",
       "resolved": "git+ssh://git@github.com/datachainlab/base64.git#4d85607b18d981acff392d2e99ba654305552a97",
       "integrity": "sha512-Z951TWkV5LDzQcRjbhl2Icy3xC+jOuX6UxeAbMW6EMNo0cOpjrZGM9I8uxFztHFuFU95UhhSWP5kAaGPRpj9AA=="
     },
+    "node_modules/blakejs": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/blakejs/-/blakejs-1.2.1.tgz",
+      "integrity": "sha512-QXUSXI3QVc/gJME0dBpXrag1kbzOqCjCX8/b54ntNyW6sjtoqxqRk3LTmXzaJoh71zMsDCjM+47jS7XiwN/+fQ==",
+      "dev": true
+    },
+    "node_modules/bn.js": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.1.tgz",
+      "integrity": "sha512-eXRvHzWyYPBuB4NBy0cmYQjGitUrtqwbvlzP3G6VFnNRbsZQIxQ10PbKKHt8gZ/HW/D/747aDl+QkDqg3KQLMQ==",
+      "dev": true
+    },
     "node_modules/brace-expansion": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
@@ -327,6 +531,52 @@
         "balanced-match": "^1.0.0"
       }
     },
+    "node_modules/brorand": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/brorand/-/brorand-1.1.0.tgz",
+      "integrity": "sha512-cKV8tMCEpQs4hK/ik71d6LrPOnpkpGBR0wzxqr68g2m/LB2GxVYQroAjMJZRVM1Y4BCjCKc3vAamxSzOY2RP+w==",
+      "dev": true
+    },
+    "node_modules/browserify-aes": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/browserify-aes/-/browserify-aes-1.2.0.tgz",
+      "integrity": "sha512-+7CHXqGuspUn/Sl5aO7Ea0xWGAtETPXNSAjHo48JfLdPWcMng33Xe4znFvQweqc/uzk5zSOI3H52CYnjCfb5hA==",
+      "dev": true,
+      "dependencies": {
+        "buffer-xor": "^1.0.3",
+        "cipher-base": "^1.0.0",
+        "create-hash": "^1.1.0",
+        "evp_bytestokey": "^1.0.3",
+        "inherits": "^2.0.1",
+        "safe-buffer": "^5.0.1"
+      }
+    },
+    "node_modules/bs58": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/bs58/-/bs58-4.0.1.tgz",
+      "integrity": "sha512-Ok3Wdf5vOIlBrgCvTq96gBkJw+JUEzdBgyaza5HLtPm7yTHkjRy8+JzNyHF7BHa0bNWOQIp3m5YF0nnFcOIKLw==",
+      "dev": true,
+      "dependencies": {
+        "base-x": "^3.0.2"
+      }
+    },
+    "node_modules/bs58check": {
+      "version": "2.1.2",
+      "resolved": "https://registry.npmjs.org/bs58check/-/bs58check-2.1.2.tgz",
+      "integrity": "sha512-0TS1jicxdU09dwJMNZtVAfzPi6Q6QeN0pM1Fkzrjn+XYHvzMKPU3pHVpva+769iNVSfIYWf7LJ6WR+BuuMf8cA==",
+      "dev": true,
+      "dependencies": {
+        "bs58": "^4.0.0",
+        "create-hash": "^1.1.0",
+        "safe-buffer": "^5.1.2"
+      }
+    },
+    "node_modules/buffer-xor": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/buffer-xor/-/buffer-xor-1.0.3.tgz",
+      "integrity": "sha512-571s0T7nZWK6vB67HI5dyUF7wXiNcfaPPPTl6zYCNApANjIvYJTg7hlud/+cJpdAhS7dVzqMLmfhfHR3rAcOjQ==",
+      "dev": true
+    },
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+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ]
+    },
+    "node_modules/scrypt-js": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/scrypt-js/-/scrypt-js-3.0.1.tgz",
+      "integrity": "sha512-cdwTTnqPu0Hyvf5in5asVdZocVDTNRmR7XEcJuIzMjJeSHybHl7vpB66AzwTaIg6CLSbtjcxc8fqcySfnTkccA==",
+      "dev": true
+    },
+    "node_modules/secp256k1": {
+      "version": "4.0.3",
+      "resolved": "https://registry.npmjs.org/secp256k1/-/secp256k1-4.0.3.tgz",
+      "integrity": "sha512-NLZVf+ROMxwtEj3Xa562qgv2BK5e2WNmXPiOdVIPLgs6lyTzMvBq0aWTYMI5XCP9jZMVKOcqZLw/Wc4vDkuxhA==",
+      "dev": true,
+      "hasInstallScript": true,
+      "dependencies": {
+        "elliptic": "^6.5.4",
+        "node-addon-api": "^2.0.0",
+        "node-gyp-build": "^4.2.0"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/semver": {
       "version": "7.6.2",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.6.2.tgz",
@@ -1073,6 +1692,31 @@
         "node": ">=10"
       }
     },
+    "node_modules/setimmediate": {
+      "version": "1.0.5",
+      "resolved": "https://registry.npmjs.org/setimmediate/-/setimmediate-1.0.5.tgz",
+      "integrity": "sha512-MATJdZp8sLqDl/68LfQmbP8zKPLQNV6BIZoIgrscFDQ+RsvK/BxeDQOgyxKKoh0y/8h3BqVFnCqQ/gd+reiIXA==",
+      "dev": true
+    },
+    "node_modules/sha.js": {
+      "version": "2.4.11",
+      "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
+      "integrity": "sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==",
+      "dev": true,
+      "dependencies": {
+        "inherits": "^2.0.1",
+        "safe-buffer": "^5.0.1"
+      },
+      "bin": {
+        "sha.js": "bin.js"
+      }
+    },
+    "node_modules/signal-exit": {
+      "version": "3.0.7",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz",
+      "integrity": "sha512-wnD2ZE+l+SPC/uoS0vXeE9L1+0wuaMqKlfz9AMUo38JsyLSBWSFcHR1Rri62LZc12vLr1gb3jl7iwQhgwpAbGQ==",
+      "dev": true
+    },
     "node_modules/slice-ansi": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/slice-ansi/-/slice-ansi-4.0.0.tgz",
@@ -1122,12 +1766,27 @@
         "prettier": "^2.8.3"
       }
     },
+    "node_modules/solidity-ast": {
+      "version": "0.4.59",
+      "resolved": "https://registry.npmjs.org/solidity-ast/-/solidity-ast-0.4.59.tgz",
+      "integrity": "sha512-I+CX0wrYUN9jDfYtcgWSe+OAowaXy8/1YQy7NS4ni5IBDmIYBq7ZzaP/7QqouLjzZapmQtvGLqCaYgoUWqBo5g==",
+      "dev": true
+    },
     "node_modules/solidity-datetime": {
       "name": "@quant-finance/solidity-datetime",
       "version": "2.2.0",
       "resolved": "git+ssh://git@github.com/datachainlab/solidity-datetime.git#294fc244973cc5f9ec374713affde12c1403927c",
       "integrity": "sha512-Ip057nWMpbx+1HudnmNBRCdqOy354UZVGnfQv0E3tSs4aKX4WvcqjjiEfU7Gnt4hVKW2ephOENmyLEkSZfvlvw=="
     },
+    "node_modules/string_decoder": {
+      "version": "1.3.0",
+      "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
+      "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "dev": true,
+      "dependencies": {
+        "safe-buffer": "~5.2.0"
+      }
+    },
     "node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
@@ -1219,6 +1878,12 @@
       "integrity": "sha512-N+8UisAXDGk8PFXP4HAzVR9nbfmVJ3zYLAWiTIoqC5v5isinhr+r5uaO8+7r3BMfuNIufIsA7RdpVgacC2cSpw==",
       "dev": true
     },
+    "node_modules/undici-types": {
+      "version": "6.19.8",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
+      "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+      "dev": true
+    },
     "node_modules/uri-js": {
       "version": "4.4.1",
       "resolved": "https://registry.npmjs.org/uri-js/-/uri-js-4.4.1.tgz",
@@ -1228,6 +1893,12 @@
         "punycode": "^2.1.0"
       }
     },
+    "node_modules/util-deprecate": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
+      "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
+      "dev": true
+    },
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
diff --git a/package.json b/package.json
index ff76f86..32ecada 100644
--- a/package.json
+++ b/package.json
@@ -4,13 +4,15 @@
   "description": "LCP Client in Solidity",
   "dependencies": {
     "@openzeppelin/contracts": "^5.0.1",
+    "@openzeppelin/contracts-upgradeable": "^5.0.1",
     "@hyperledger-labs/yui-ibc-solidity": "git+https://github.com/hyperledger-labs/yui-ibc-solidity.git#v0.3.29",
     "base64": "git+https://github.com/datachainlab/base64.git#4d85607b18d981acff392d2e99ba654305552a97",
     "solidity-datetime": "git+https://github.com/datachainlab/solidity-datetime.git#294fc244973cc5f9ec374713affde12c1403927c",
     "@ensdomains/ens-contracts": "1.1.4"
   },
   "devDependencies": {
-    "solhint": "^5.0.0"
+    "solhint": "^5.0.0",
+    "@openzeppelin/upgrades-core": "^1.32.3"
   },
   "license": "Apache-2.0"
 }
diff --git a/test/ContractUpgrade.t.sol b/test/ContractUpgrade.t.sol
new file mode 100644
index 0000000..cd755c6
--- /dev/null
+++ b/test/ContractUpgrade.t.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: UNLICENSED
+pragma solidity ^0.8.20;
+
+import {Test} from "forge-std/Test.sol";
+import {Upgrades} from "openzeppelin-foundry-upgrades/Upgrades.sol";
+import {Options} from "openzeppelin-foundry-upgrades/Options.sol";
+import {LCPClientOwnableUpgradeable} from "../contracts/LCPClientOwnableUpgradeable.sol";
+
+contract ContractUpgrade is Test {
+    string internal constant rootCAFile = "test/data/certs/Intel_SGX_Attestation_RootCA.der";
+
+    function testUpgrade() public {
+        if (!vm.envOr("TEST_UPGRADEABLE", false)) {
+            return;
+        }
+        Options memory opts;
+        opts.constructorData = abi.encode(address(0x01), true);
+        bytes memory rootCACert = vm.readFileBinary(rootCAFile);
+        vm.warp(2524607999);
+        Upgrades.deployUUPSProxy(
+            "LCPClientOwnableUpgradeable.sol", abi.encodeCall(LCPClientOwnableUpgradeable.initialize, rootCACert), opts
+        );
+    }
+}