diff --git a/.github/workflows/selfdrive_tests.yaml b/.github/workflows/selfdrive_tests.yaml
index 8304582620..7397e30f83 100644
--- a/.github/workflows/selfdrive_tests.yaml
+++ b/.github/workflows/selfdrive_tests.yaml
@@ -39,6 +39,8 @@ jobs:
       with:
         fetch-depth: 0
         submodules: true
+    - name: Pull LFS
+      run: git lfs pull
     - name: Check submodules
       if: github.ref == 'refs/heads/master' && github.repository == 'commaai/openpilot'
       run: release/check-submodules.sh
diff --git a/release/build_devel.sh b/release/build_devel.sh
index 9d8b06451b..f06e3102c8 100755
--- a/release/build_devel.sh
+++ b/release/build_devel.sh
@@ -69,6 +69,15 @@ date: $DATETIME
 master commit: $GIT_HASH
 "
 
+# ensure files are within GitHub's limit
+BIG_FILES="$(find . -type f -not -path './.git/*' -size +95M)"
+if [ ! -z "$BIG_FILES" ]; then
+  printf '\n\n\n'
+  echo "Found files exceeding GitHub's 100MB limit:"
+  echo "$BIG_FILES"
+  exit 1
+fi
+
 if [ ! -z "$BRANCH" ]; then
   echo "[-] Pushing to $BRANCH T=$SECONDS"
   git push -f origin master-ci:$BRANCH