diff --git a/tests/index.mjs b/tests/index.mjs
index 1a79eff..887cfc4 100644
--- a/tests/index.mjs
+++ b/tests/index.mjs
@@ -16,7 +16,7 @@ import conditionalLm from './conditional-lm.mjs'
 import conditionalEtag from './conditional-etag.mjs'
 import headers from './headers.mjs'
 import update304 from './update304.mjs'
-import updateHead from './updateHead.mjs'
+import updateHead from './update-head.mjs'
 import invalidation from './invalidation.mjs'
 import partial from './partial.mjs'
 import auth from './authorization.mjs'
diff --git a/tests/updateHead.mjs b/tests/update-head.mjs
similarity index 99%
rename from tests/updateHead.mjs
rename to tests/update-head.mjs
index 9b8998c..3347d08 100644
--- a/tests/updateHead.mjs
+++ b/tests/update-head.mjs
@@ -4,7 +4,7 @@ export default
 
 {
   name: 'HEAD updates',
-  id: 'updateHEAD',
+  id: 'update-head',
   description: 'These tests check how a cache updates stored responses when receiving a `HEAD` response.',
   spec_anchors: ['head.effects'],
   tests: [