diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 127dbd3..92b4994 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -8,6 +8,7 @@ pages:
   script:
     - mkdir -p public/
     - cp urlhaus-filter/urlhaus-filter-* public/
+    - find public -type f -regex '.*\.\(htm\|html\|txt\|text\|js\|css\)$' -exec gzip -f -k -9 {} \;
 
   artifacts:
     paths: