diff --git a/.github/workflows/codecov.yml b/.github/workflows/codecov.yml
index bb4ed169..60a53171 100644
--- a/.github/workflows/codecov.yml
+++ b/.github/workflows/codecov.yml
@@ -25,6 +25,9 @@ name: tarpaulin
   push:
     branches:
       - master
+  pull_request:
+    branches:
+      - master
 jobs:
   tarpaulin:
     runs-on: ubuntu-22.04