diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
index 24253c5092e9..4adb29dde46d 100644
--- a/.github/workflows/cygwin.yml
+++ b/.github/workflows/cygwin.yml
@@ -139,7 +139,7 @@ jobs:
         # FreeType build fails with bash, succeeds with dash
 
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: C:\cygwin\home\runneradmin\.cache\pip
           key: Cygwin-py3.${{ matrix.python-minor-version }}-pip-${{ hashFiles('requirements/*/*.txt') }}
@@ -147,14 +147,14 @@ jobs:
             ${{ matrix.os }}-py3.${{ matrix.python-minor-version }}-pip-
 
       - name: Cache ccache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: C:\cygwin\home\runneradmin\.ccache
           key: Cygwin-py3.${{ matrix.python-minor-version }}-ccache-${{ hashFiles('src/*') }}
           restore-keys: Cygwin-py3.${{ matrix.python-minor-version }}-ccache-
 
       - name: Cache Matplotlib
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             C:\cygwin\home\runneradmin\.cache\matplotlib
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 3abb1ae7e68b..695464e8d5cf 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -162,7 +162,7 @@ jobs:
           esac
 
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         if: startsWith(runner.os, 'Linux')
         with:
           path: ~/.cache/pip
@@ -170,7 +170,7 @@ jobs:
           restore-keys: |
             ${{ matrix.os }}-py${{ matrix.python-version }}-pip-
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         if: startsWith(runner.os, 'macOS')
         with:
           path: ~/Library/Caches/pip
@@ -178,7 +178,7 @@ jobs:
           restore-keys: |
             ${{ matrix.os }}-py${{ matrix.python-version }}-pip-
       - name: Cache ccache
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.ccache
@@ -186,7 +186,7 @@ jobs:
           restore-keys: |
             ${{ matrix.os }}-py${{ matrix.python-version }}-ccache-
       - name: Cache Matplotlib
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: |
             ~/.cache/matplotlib