diff --git a/.github/workflows/build-docs.yml b/.github/workflows/build-docs.yml
index b508829d..2f6cf61f 100644
--- a/.github/workflows/build-docs.yml
+++ b/.github/workflows/build-docs.yml
@@ -29,7 +29,7 @@ jobs:
         run: poetry config virtualenvs.in-project true
 
       - name: Set up cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           path: .venv
diff --git a/.github/workflows/python-test.yml b/.github/workflows/python-test.yml
index e2b04278..95bbe785 100644
--- a/.github/workflows/python-test.yml
+++ b/.github/workflows/python-test.yml
@@ -37,7 +37,7 @@ jobs:
         run: poetry config virtualenvs.in-project true
 
       - name: Set up cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           path: .venv
@@ -87,7 +87,7 @@ jobs:
         run: poetry config virtualenvs.in-project true
 
       - name: Set up cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           path: .venv