diff --git a/.github/workflows/cpp.yml b/.github/workflows/cpp.yml
index 60f3bbc..b3291d3 100644
--- a/.github/workflows/cpp.yml
+++ b/.github/workflows/cpp.yml
@@ -1,5 +1,10 @@
 # Copied from https://github.com/rerun-io/rerun_template
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+    types: [ opened, synchronize ]
 
 name: C++
 
diff --git a/.github/workflows/links.yml b/.github/workflows/links.yml
index 8bb984c..aeb663d 100644
--- a/.github/workflows/links.yml
+++ b/.github/workflows/links.yml
@@ -1,5 +1,10 @@
 # Copied from https://github.com/rerun-io/rerun_template
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+    types: [ opened, synchronize ]
 
 name: Link checker
 
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 7af773c..61bdbd3 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -1,5 +1,10 @@
 # Copied from https://github.com/rerun-io/rerun_template
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+    types: [ opened, synchronize ]
 
 name: C++
 
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index efc0f2c..88bbf3e 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -1,5 +1,10 @@
 # Copied from https://github.com/rerun-io/rerun_template
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "main"
+  pull_request:
+    types: [ opened, synchronize ]
 
 name: Rust