diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6674da7..5ee7118 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,8 +22,8 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-node@v4
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
         with:
           node-version-file: '.nvmrc'
           cache: 'npm'
diff --git a/package-lock.json b/package-lock.json
index e1f607b..30f7f20 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,20 +17,20 @@
         "winston": "^3.8.2"
       },
       "devDependencies": {
-        "@eslint/js": "^9.39.2",
+        "@eslint/js": "9.39.2",
         "@types/express": "5.0.6",
-        "@types/jest": "^29.5.14",
+        "@types/jest": "29.5.14",
         "@types/luxon": "3.7.1",
         "@types/node": "24.10.9",
-        "eslint": "^9.39.2",
-        "eslint-config-prettier": "^10.1.8",
-        "eslint-plugin-prettier": "^5.5.5",
-        "jest": "^29.7.0",
-        "prettier": "^3.8.1",
-        "ts-jest": "^29.2.5",
+        "eslint": "9.39.2",
+        "eslint-config-prettier": "10.1.8",
+        "eslint-plugin-prettier": "5.5.5",
+        "jest": "29.7.0",
+        "prettier": "3.8.1",
+        "ts-jest": "29.4.6",
         "ts-node": "10.9.2",
         "typescript": "5.9.3",
-        "typescript-eslint": "^8.54.0"
+        "typescript-eslint": "8.55.0"
       }
     },
     "node_modules/@babel/code-frame": {
diff --git a/package.json b/package.json
index 28eecac..30ac76a 100644
--- a/package.json
+++ b/package.json
@@ -24,19 +24,19 @@
     "format:check": "prettier --check src/"
   },
   "devDependencies": {
-    "@eslint/js": "^9.39.2",
+    "@eslint/js": "9.39.2",
     "@types/express": "5.0.6",
-    "@types/jest": "^29.5.14",
+    "@types/jest": "29.5.14",
     "@types/luxon": "3.7.1",
     "@types/node": "24.10.9",
-    "eslint": "^9.39.2",
-    "eslint-config-prettier": "^10.1.8",
-    "eslint-plugin-prettier": "^5.5.5",
-    "jest": "^29.7.0",
-    "prettier": "^3.8.1",
-    "ts-jest": "^29.2.5",
+    "eslint": "9.39.2",
+    "eslint-config-prettier": "10.1.8",
+    "eslint-plugin-prettier": "5.5.5",
+    "jest": "29.7.0",
+    "prettier": "3.8.1",
+    "ts-jest": "29.4.6",
     "ts-node": "10.9.2",
     "typescript": "5.9.3",
-    "typescript-eslint": "^8.54.0"
+    "typescript-eslint": "8.55.0"
   }
 }