diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index 8966cbf..0d5504c 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -14,7 +14,7 @@ jobs:
 
     # Cache Conda environment installattion
     - name: Cache conda
-      uses: actions/cache@v2
+      uses: actions/cache@v4
       env:
         # Increase this value to reset cache if etc/example-environment.yml has not changed
         CACHE_NUMBER: 0
diff --git a/.github/workflows/deploy_gh_pages.yml b/.github/workflows/deploy_gh_pages.yml
index 993c5d2..d5c88c9 100644
--- a/.github/workflows/deploy_gh_pages.yml
+++ b/.github/workflows/deploy_gh_pages.yml
@@ -26,7 +26,7 @@ jobs:
 
       # Cache Conda environment installattion
       - name: Cache conda
-        uses: actions/cache@v2
+        uses: actions/cache@v4
         env:
           # Increase this value to reset cache if etc/example-environment.yml has not changed
           CACHE_NUMBER: 0
diff --git a/.github/workflows/test_on_push.yml b/.github/workflows/test_on_push.yml
index 5333784..e20e46f 100644
--- a/.github/workflows/test_on_push.yml
+++ b/.github/workflows/test_on_push.yml
@@ -20,12 +20,6 @@ jobs:
         run: |
           conda info
           conda list
-      # - name: Lint
-      #   shell: bash -l {0}
-      #   run: |
-      #       conda install flake8
-      #       python -m flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-      #       python -m flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics
       - name: Run pytest
         shell: bash -l {0}
         run: |