diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2f197913a..4637a8112 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,9 @@ You can also check the
 
 ## next release
 
+- Fixes
+  - Improve CSP header
+
 ## 6.5.2 – 2026-08-04
 
 - Fixes
diff --git a/app/middleware.ts b/app/middleware.ts
index 6ae9db30c..3327585e3 100644
--- a/app/middleware.ts
+++ b/app/middleware.ts
@@ -32,7 +32,7 @@ function buildCSP(frameAncestors: string): string {
 
   return [
     `default-src 'self' 'unsafe-inline'${unsafeEval}${sentryCSP}${vercelDefault}`,
-    `script-src 'self' 'unsafe-inline'${unsafeEval}${sentryCSP}${vercelScript} https://api.mapbox.com https://api.maptiler.com`,
+    `script-src 'self'${unsafeEval}${sentryCSP}${vercelScript} https://api.mapbox.com https://api.maptiler.com`,
     `script-src-elem 'self' 'unsafe-inline' https://*.admin.ch https://visualize.admin.ch https://*.visualize.admin.ch${vercelScriptElem} https://api.mapbox.com`,
     `style-src 'self' 'unsafe-inline' https://fonts.googleapis.com`,
     `font-src 'self'`,