diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 562ecfe..a81e822 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: cirrusci/flutter:latest
+image: cirrusci/flutter:3.3.5
 
 stages:
   - analyze