diff --git a/changelogs/fragments/376-dashboard-lookup-api-key-deprecation.yml b/changelogs/fragments/376-dashboard-lookup-api-key-deprecation.yml
new file mode 100644
index 00000000..a462ffd3
--- /dev/null
+++ b/changelogs/fragments/376-dashboard-lookup-api-key-deprecation.yml
@@ -0,0 +1,3 @@
+---
+removed_features:
+  - removed check and handling of mangled api key in `grafana_dashboard` lookup