diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e5364a59..16e96391 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -45,7 +45,7 @@ jobs:
         #----------------------------------------------
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ env.pythonversion }}-${{ hashFiles('**/poetry.lock') }}
@@ -117,7 +117,7 @@ jobs:
         #----------------------------------------------
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ matrix.pyver }}-${{ hashFiles('**/poetry.lock') }}
diff --git a/.github/workflows/docs-pages.yml b/.github/workflows/docs-pages.yml
index c70abfb1..7edee9b0 100644
--- a/.github/workflows/docs-pages.yml
+++ b/.github/workflows/docs-pages.yml
@@ -36,7 +36,7 @@ jobs:
 
       - name: Load cached venv
         id: cached-poetry-dependencies
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .venv
           key: venv-${{ runner.os }}-${{ hashFiles('**/poetry.lock') }}
diff --git a/.github/workflows/pypi-publish.yaml b/.github/workflows/pypi-publish.yaml
index 75693d0e..c4858083 100644
--- a/.github/workflows/pypi-publish.yaml
+++ b/.github/workflows/pypi-publish.yaml
@@ -32,7 +32,7 @@ jobs:
           python-version: 3.9
 
       - name: Cache Poetry virtualenv
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         id: cache
         with:
           path: ~/.virtualenvs