diff --git a/package-lock.json b/package-lock.json
index 65c7fe07..99647c48 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -47,7 +47,7 @@
         "nock": "^13.2.9",
         "prettier": "^3.0.0",
         "simple-git": "^3.15.1",
-        "sinon": "^18.0.0",
+        "sinon": "^19.0.0",
         "sinon-chai": "^4.0.0"
       },
       "engines": {
@@ -1329,13 +1329,13 @@
       }
     },
     "node_modules/@sinonjs/fake-timers": {
-      "version": "11.2.2",
-      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-11.2.2.tgz",
-      "integrity": "sha512-G2piCSxQ7oWOxwGSAyFHfPIsyeJGXYtc6mFbnFA+kRXkiEnTl8c/8jul2S329iFBnDI9HGoeWWAZvuvOkZccgw==",
+      "version": "13.0.5",
+      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-13.0.5.tgz",
+      "integrity": "sha512-36/hTbH2uaWuGVERyC6da9YwGWnzUZXuPro/F2LfsdOsLnCojz/iSH8MxUt/FD2S5XBSVPhmArFUXcpCQ2Hkiw==",
       "dev": true,
       "license": "BSD-3-Clause",
       "dependencies": {
-        "@sinonjs/commons": "^3.0.0"
+        "@sinonjs/commons": "^3.0.1"
       }
     },
     "node_modules/@sinonjs/samsam": {
@@ -4738,16 +4738,6 @@
         "path-to-regexp": "^8.1.0"
       }
     },
-    "node_modules/nise/node_modules/@sinonjs/fake-timers": {
-      "version": "13.0.5",
-      "resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-13.0.5.tgz",
-      "integrity": "sha512-36/hTbH2uaWuGVERyC6da9YwGWnzUZXuPro/F2LfsdOsLnCojz/iSH8MxUt/FD2S5XBSVPhmArFUXcpCQ2Hkiw==",
-      "dev": true,
-      "license": "BSD-3-Clause",
-      "dependencies": {
-        "@sinonjs/commons": "^3.0.1"
-      }
-    },
     "node_modules/nock": {
       "version": "13.5.6",
       "resolved": "https://registry.npmjs.org/nock/-/nock-13.5.6.tgz",
@@ -5644,18 +5634,18 @@
       }
     },
     "node_modules/sinon": {
-      "version": "18.0.1",
-      "resolved": "https://registry.npmjs.org/sinon/-/sinon-18.0.1.tgz",
-      "integrity": "sha512-a2N2TDY1uGviajJ6r4D1CyRAkzE9NNVlYOV1wX5xQDuAk0ONgzgRl0EjCQuRCPxOwp13ghsMwt9Gdldujs39qw==",
+      "version": "19.0.2",
+      "resolved": "https://registry.npmjs.org/sinon/-/sinon-19.0.2.tgz",
+      "integrity": "sha512-euuToqM+PjO4UgXeLETsfQiuoyPXlqFezr6YZDFwHR3t4qaX0fZUe1MfPMznTL5f8BWrVS89KduLdMUsxFCO6g==",
       "dev": true,
       "license": "BSD-3-Clause",
       "dependencies": {
         "@sinonjs/commons": "^3.0.1",
-        "@sinonjs/fake-timers": "11.2.2",
-        "@sinonjs/samsam": "^8.0.0",
-        "diff": "^5.2.0",
-        "nise": "^6.0.0",
-        "supports-color": "^7"
+        "@sinonjs/fake-timers": "^13.0.2",
+        "@sinonjs/samsam": "^8.0.1",
+        "diff": "^7.0.0",
+        "nise": "^6.1.1",
+        "supports-color": "^7.2.0"
       },
       "funding": {
         "type": "opencollective",
@@ -5673,6 +5663,16 @@
         "sinon": ">=4.0.0"
       }
     },
+    "node_modules/sinon/node_modules/diff": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-7.0.0.tgz",
+      "integrity": "sha512-PJWHUb1RFevKCwaFA9RlG5tCd+FO5iRh9A8HEtkmBH2Li03iJriB6m6JIN4rGz3K3JLawI7/veA1xzRKP6ISBw==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.3.1"
+      }
+    },
     "node_modules/slack-block-builder": {
       "version": "2.8.0",
       "resolved": "https://registry.npmjs.org/slack-block-builder/-/slack-block-builder-2.8.0.tgz",
diff --git a/package.json b/package.json
index f9b30f48..9b7a86e0 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,7 @@
     "nock": "^13.2.9",
     "prettier": "^3.0.0",
     "simple-git": "^3.15.1",
-    "sinon": "^18.0.0",
+    "sinon": "^19.0.0",
     "sinon-chai": "^4.0.0"
   }
 }