diff --git a/.github/workflows/GithubActionTests.yml b/.github/workflows/GithubActionTests.yml
index 091b4d5e64..ddd7741ce7 100644
--- a/.github/workflows/GithubActionTests.yml
+++ b/.github/workflows/GithubActionTests.yml
@@ -42,6 +42,7 @@ jobs:
         run: |
           eval "$(conda shell.bash hook)"
           conda activate bioconda
+          git fetch origin master:refs/remotes/origin/master
           if git diff --name-only origin/master...HEAD | grep -vE ^docs; then
               py.test --durations=0 test/ -v --log-level=DEBUG --tb=native -m '${{ matrix.py_test_marker }}'
           else
@@ -70,6 +71,7 @@ jobs:
         run: |
           eval "$(conda shell.bash hook)"
           conda activate bioconda
+          git fetch origin master:refs/remotes/origin/master
           if git diff --name-only origin/master...HEAD | grep -vE ^docs; then
               py.test --durations=0 test/ -v --log-level=DEBUG -k "not docker" --tb=native
           else