diff --git a/.github/workflows/daily.yml b/.github/workflows/daily.yml
index 6dafad073..82a8b46b5 100644
--- a/.github/workflows/daily.yml
+++ b/.github/workflows/daily.yml
@@ -78,7 +78,7 @@ jobs:
               sudo apt update && sudo apt install -y $PACKAGES
             fi
 
-            xvfb-run python tests/stubtest_third_party.py --specified-stubs-only --num-shards 4 --shard-index ${{ matrix.shard-index }}
+            PYTHON_EXECUTABLE="xvfb-run python"
           else
             if [ "${{ runner.os }}" = "macOS" ] && [ -n "$PACKAGES" ]; then
               NONINTERACTIVE=1 brew install $PACKAGES
@@ -88,9 +88,10 @@ jobs:
               choco install -y $PACKAGES
             fi
 
-            python tests/stubtest_third_party.py --specified-stubs-only --num-shards 4 --shard-index ${{ matrix.shard-index }}
+            PYTHON_EXECUTABLE="python"
           fi
 
+          $PYTHON_EXECUTABLE tests/stubtest_third_party.py --specified-stubs-only --num-shards 4 --shard-index ${{ matrix.shard-index }}
   stub-uploader:
     name: Run the stub_uploader tests
     runs-on: ubuntu-latest
diff --git a/.github/workflows/stubtest_third_party.yml b/.github/workflows/stubtest_third_party.yml
index 3e17e2f5b..a908d3695 100644
--- a/.github/workflows/stubtest_third_party.yml
+++ b/.github/workflows/stubtest_third_party.yml
@@ -66,7 +66,7 @@ jobs:
                 sudo apt update && sudo apt install -y $PACKAGES
               fi
 
-              xvfb-run python tests/stubtest_third_party.py --specified-stubs-only $STUBS
+              PYTHON_EXECUTABLE="xvfb-run python"
             else
               if [ "${{ runner.os }}" = "macOS" ] && [ -n "$PACKAGES" ]; then
                 echo "Installing Homebrew packages: $PACKAGES"
@@ -78,8 +78,10 @@ jobs:
                 choco install -y $PACKAGES
               fi
 
-              python tests/stubtest_third_party.py --specified-stubs-only $STUBS
+              PYTHON_EXECUTABLE="python"
             fi
+
+            $PYTHON_EXECUTABLE tests/stubtest_third_party.py --specified-stubs-only $STUBS
           else
             echo "Nothing to test"
           fi