diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 8b49daf..49a37a3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -52,7 +52,7 @@ jobs:
 
       - name: Cache liboqs build
         id: liboqs-cache
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
         with:
           path: external/liboqs/build
           key: liboqs-${{ runner.os }}-x64-${{ matrix.configuration }}-${{ hashFiles('external/liboqs/CMakeLists.txt') }}
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index f72f89c..3623db1 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -49,7 +49,7 @@ jobs:
 
       - name: Cache liboqs build
         id: liboqs-cache
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
         with:
           path: external/liboqs/build
           key: liboqs-${{ runner.os }}-x64-Release-${{ hashFiles('external/liboqs/CMakeLists.txt') }}
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 60d970f..d10a7eb 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -44,7 +44,7 @@ jobs:
 
       - name: Cache liboqs build
         id: liboqs-cache
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
         with:
           path: external/liboqs/build
           key: liboqs-${{ runner.os }}-x64-Release-${{ hashFiles('external/liboqs/CMakeLists.txt') }}
diff --git a/.github/workflows/sanitizers.yml b/.github/workflows/sanitizers.yml
index 74f875a..9f0d3ec 100644
--- a/.github/workflows/sanitizers.yml
+++ b/.github/workflows/sanitizers.yml
@@ -43,7 +43,7 @@ jobs:
 
       - name: Cache liboqs build
         id: liboqs-cache
-        uses: actions/cache@0057852bfaa89a56745cba8c7296529d2fc39830  # v4
+        uses: actions/cache@27d5ce7f107fe9357f9df03efb73ab90386fccae  # v5.0.5
         with:
           path: external/liboqs/build
           key: liboqs-${{ runner.os }}-x64-Release-${{ hashFiles('external/liboqs/CMakeLists.txt') }}