diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 443ecce..07ff7a1 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,9 +9,9 @@ name: Continuous Integration
 
 on:
   pull_request:
-    branches: ['**', '!update/**', '!pr/**']
+    branches: [master]
   push:
-    branches: ['**', '!update/**', '!pr/**']
+    branches: [master]
     tags: [v*]
 
 env:
diff --git a/build.sbt b/build.sbt
index e281e1b..1a0a027 100644
--- a/build.sbt
+++ b/build.sbt
@@ -110,4 +110,5 @@ lazy val benchmark_2_11 = (project in file("modules/benchmark_2_11"))
     ),
   )
 
+ThisBuild / githubWorkflowTargetBranches := Seq("master")
 ThisBuild / githubWorkflowPublishTargetBranches := Seq()