diff --git a/.github/workflows/build-and-cache-libpq.yml b/.github/workflows/build-and-cache-libpq.yml
index 7d92383d..e3d53fac 100644
--- a/.github/workflows/build-and-cache-libpq.yml
+++ b/.github/workflows/build-and-cache-libpq.yml
@@ -74,7 +74,7 @@ jobs:
           image: tonistiigi/binfmt:qemu-v8.1.5
 
       - name: Cache libpq build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: /tmp/libpq.build
           key: libpq-${{ matrix.platform }}-${{ matrix.arch }}-${{ env.LIBPQ_VERSION }}-${{ env.OPENSSL_VERSION }}${{ env.PQ_FLAGS }}
@@ -117,7 +117,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Cache libpq build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: /tmp/libpq.build
           key: libpq-macos-${{ env.LIBPQ_VERSION }}-${{ matrix.arch }}-${{ env.OPENSSL_VERSION }}${{ env.PQ_FLAGS }}
diff --git a/.github/workflows/packages.yml b/.github/workflows/packages.yml
index 48a95fcf..06a6794d 100644
--- a/.github/workflows/packages.yml
+++ b/.github/workflows/packages.yml
@@ -86,7 +86,7 @@ jobs:
         uses: docker/setup-qemu-action@v3
 
       - name: Cache libpq build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: /tmp/libpq.build
           key: libpq-${{ matrix.platform }}-${{ matrix.arch }}-${{ env.LIBPQ_VERSION }}-${{ env.OPENSSL_VERSION }}${{ env.PQ_FLAGS }}
@@ -158,7 +158,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Cache libpq build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: /tmp/libpq.build
           key: libpq-macos-${{ env.LIBPQ_VERSION }}-${{ matrix.arch }}-${{ env.OPENSSL_VERSION }}${{ env.PQ_FLAGS }}