diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d15ec11..0afc611 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,5 +33,8 @@ jobs:
       - name: Build example
         run: cd ./_example && go build -v ./
 
+      - name: Check ulimit
+        run: ulimit -n
+
       - name: Test
         run: go test -v -count=10 ./...