diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7b218dd..19408fc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -1,6 +1,11 @@
 name: tests
 
-on: [push, pull_request]
+on:
+  push:
+    branches:
+      - "*"
+    # not on tags
+  pull_request:
 
 env:
   BLAKE3_CI: "1"