diff --git a/multiversx_sdk_cli/cli_contracts.py b/multiversx_sdk_cli/cli_contracts.py
index 2fe46672..3513aab9 100644
--- a/multiversx_sdk_cli/cli_contracts.py
+++ b/multiversx_sdk_cli/cli_contracts.py
@@ -411,7 +411,7 @@ def upgrade(args: Any):
     contract.address = Address(contract_address)
     sender = _prepare_sender(args)
 
-    tx = contract.upgrade(sender, arguments, gas_price, gas_limit, value, chain, version, args.guardian_address, args.options)
+    tx = contract.upgrade(sender, arguments, gas_price, gas_limit, value, chain, version, args.guardian, args.options)
 
     if args.guardian:
         tx = cosign_transaction(tx, args.guardian_service_url, args.guardian_2fa_code)
diff --git a/multiversx_sdk_cli/tests/test_cli_contracts.py b/multiversx_sdk_cli/tests/test_cli_contracts.py
new file mode 100644
index 00000000..547309d0
--- /dev/null
+++ b/multiversx_sdk_cli/tests/test_cli_contracts.py
@@ -0,0 +1,90 @@
+from pathlib import Path
+from multiversx_sdk_cli.cli import main
+
+
+def test_contract_deploy():
+    parent = Path(__file__).parent
+    output_file = parent / "testdata-out" / "deploy.json"
+
+    main(
+        [
+            "contract",
+            "deploy",
+            "--bytecode",
+            f"{parent}/testdata/adder.wasm",
+            "--pem",
+            f"{parent}/testdata/testUser.pem",
+            "--proxy",
+            "https://testnet-api.multiversx.com",
+            "--chain",
+            "T",
+            "--recall-nonce",
+            "--gas-limit",
+            "5000000",
+            "--arguments",
+            "0",
+            "--outfile",
+            str(output_file),
+        ]
+    )
+    assert Path.is_file(output_file) == True
+
+
+def test_contract_upgrade():
+    parent = Path(__file__).parent
+    output_file = parent / "testdata-out" / "upgrade.json"
+    contract_address = "erd1qqqqqqqqqqqqqpgq5l9jl0j0gnqmm7hn82zaydwux3s5xuwkyq8srt5vsy"
+
+    main(
+        [
+            "contract",
+            "upgrade",
+            contract_address,
+            "--bytecode",
+            f"{parent}/testdata/adder.wasm",
+            "--pem",
+            f"{parent}/testdata/testUser.pem",
+            "--proxy",
+            "https://testnet-api.multiversx.com",
+            "--chain",
+            "T",
+            "--recall-nonce",
+            "--gas-limit",
+            "5000000",
+            "--arguments",
+            "0",
+            "--outfile",
+            str(output_file),
+        ]
+    )
+    assert Path.is_file(output_file) == True
+
+
+def test_contract_call():
+    parent = Path(__file__).parent
+    output_file = parent / "testdata-out" / "call.json"
+    contract_address = "erd1qqqqqqqqqqqqqpgq5l9jl0j0gnqmm7hn82zaydwux3s5xuwkyq8srt5vsy"
+
+    main(
+        [
+            "contract",
+            "call",
+            contract_address,
+            "--function",
+            "add",
+            "--pem",
+            f"{parent}/testdata/testUser.pem",
+            "--proxy",
+            "https://testnet-api.multiversx.com",
+            "--chain",
+            "T",
+            "--recall-nonce",
+            "--gas-limit",
+            "5000000",
+            "--arguments",
+            "5",
+            "--outfile",
+            str(output_file),
+        ]
+    )
+    assert Path.is_file(output_file) == True
diff --git a/multiversx_sdk_cli/tests/testdata/adder.wasm b/multiversx_sdk_cli/tests/testdata/adder.wasm
new file mode 100755
index 00000000..820c0f40
Binary files /dev/null and b/multiversx_sdk_cli/tests/testdata/adder.wasm differ
diff --git a/pyproject.toml b/pyproject.toml
index 873d1aa4..414438de 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "multiversx-sdk-cli"
-version = "6.2.0"
+version = "6.2.1"
 authors = [
   { name="MultiversX" },
 ]