diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2080131..0f9e4b2 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -28,7 +28,7 @@ jobs:
         run: swift --version
 
       - name: Cache Swift packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .build
           key: ${{ runner.os }}-spm-${{ hashFiles('Package.swift') }}
@@ -55,7 +55,7 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: Cache Swift packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .build
           key: ${{ runner.os }}-spm-${{ hashFiles('Package.swift') }}
@@ -74,7 +74,7 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: Cache Swift packages
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .build
           key: ${{ runner.os }}-swift61-spm-${{ hashFiles('Package.swift') }}
diff --git a/.github/workflows/swift-format.yml b/.github/workflows/swift-format.yml
index 10366e7..f967b50 100644
--- a/.github/workflows/swift-format.yml
+++ b/.github/workflows/swift-format.yml
@@ -21,7 +21,7 @@ jobs:
 
       - name: Cache swift-format
         id: cache-swift-format
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: /usr/local/bin/swift-format
           key: ${{ runner.os }}-swift-format-${{ hashFiles('.github/workflows/swift-format.yml') }}