diff --git a/.github/workflows/scala.yml b/.github/workflows/scala.yml
index df8b9f5d..2560a848 100644
--- a/.github/workflows/scala.yml
+++ b/.github/workflows/scala.yml
@@ -2,9 +2,9 @@ name: Scala CI
 
 on:
   push:
-    branches: [ master ]
+    branches: [ master, scala-2.13 ]
   pull_request:
-    branches: [ master ]
+    branches: [ master, scala-2.13 ]
 
 jobs:
   build: