diff --git a/.github/workflows/ci-ubuntu.yml b/.github/workflows/ci-ubuntu.yml
index 2ecc969589..7a13f97fae 100644
--- a/.github/workflows/ci-ubuntu.yml
+++ b/.github/workflows/ci-ubuntu.yml
@@ -5,9 +5,6 @@ on:
       - master
       - experimental
   pull_request:
-    branches:
-      - master
-      - experimental
 
 ########################################################################
 ## CONFIGURATION
diff --git a/.github/workflows/haskell-ci.yml b/.github/workflows/haskell-ci.yml
index b8c55c19be..c81c8572de 100644
--- a/.github/workflows/haskell-ci.yml
+++ b/.github/workflows/haskell-ci.yml
@@ -24,9 +24,6 @@ on:
       - cabal.haskell-ci
       - "*.hs"
   pull_request:
-    branches:
-      - master
-      - experimental
     paths:
       - .github/workflows/haskell-ci.yml
       - agda-stdlib-utils.cabal