diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index 1f9c8ed..ba8cf07 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -20,7 +20,7 @@ jobs:
 
     - name: Cache .stack
       id: cache-stack
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.stack
         key: "\
diff --git a/.github/workflows/update.yaml b/.github/workflows/update.yaml
index b640caa..7b3d315 100644
--- a/.github/workflows/update.yaml
+++ b/.github/workflows/update.yaml
@@ -26,7 +26,7 @@ jobs:
 
     - name: Cache .stack
       id: cache-stack
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       with:
         path: ~/.stack
         key: "\