diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0bd29bd..54e14d9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -1,8 +1,18 @@
 name: Tests
 
+# Documentation-only changes can't change this result, so they don't run it.
 on:
   push:
+    branches: [main]
+    paths-ignore:
+      - '**.md'
+      - 'docs/**'
+      - 'LICENSE'
   pull_request:
+    paths-ignore:
+      - '**.md'
+      - 'docs/**'
+      - 'LICENSE'
 
 jobs:
   test: