diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d9e3685a..dd5a6524 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -34,7 +34,7 @@ jobs:
         restore-keys: |
             pip-lint-
     - name: Install dependencies
-      uses: py-actions/py-dependency-install@v3
+      uses: py-actions/py-dependency-install@v4
       with:
         path: requirements/ci.txt
     - name: Install itself
@@ -101,7 +101,7 @@ jobs:
         restore-keys: |
             pip-ci-${{ runner.os }}-${{ matrix.pyver }}-{{ matrix.no-extensions }}-
     - name: Install dependencies
-      uses: py-actions/py-dependency-install@v3
+      uses: py-actions/py-dependency-install@v4
       with:
         path: requirements/ci.txt
     - name: Cythonize
@@ -160,7 +160,7 @@ jobs:
       with:
         python-version: 3.x
     - name: Install cython
-      uses: py-actions/py-dependency-install@v3
+      uses: py-actions/py-dependency-install@v4
       with:
         path: requirements/ci.txt
     - name: Cythonize
@@ -213,7 +213,7 @@ jobs:
       with:
         python-version: 3.x
     - name: Install cython
-      uses: py-actions/py-dependency-install@v3
+      uses: py-actions/py-dependency-install@v4
       with:
         path: requirements/ci.txt
     - name: Cythonize