diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6d6c9c9b..f5155aab 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches: [ "main" ]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "main", "heightmaps" ] # TODO: remove 'heightmaps' after merge
 
 jobs:
   build:
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 1f9675ca..fefbbee7 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches: [ "main", "release-**"]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "main", "heightmaps" ] # TODO: remove 'heightmaps' after merge
 
 jobs:
   build-dmg:
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index f93b5ac9..349b1447 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -4,7 +4,7 @@ on:
   push:
     branches: [ "main" ]
   pull_request:
-    branches: [ "main" ]
+    branches: [ "main", "heightmaps" ] # TODO: remove 'heightmaps' after merge
 
 jobs:
   build-windows: