diff --git a/deploy/open/Dockerfile.build b/deploy/open/Dockerfile.build
index 3981430..6393d1d 100644
--- a/deploy/open/Dockerfile.build
+++ b/deploy/open/Dockerfile.build
@@ -1,5 +1,5 @@
 # Stage 1: Build the Flutter web client
-FROM bluefireteam/flutter:3.22.2 as flutter_builder
+FROM cirrusci/flutter:3.3.0 as flutter_builder
 WORKDIR /app
 
 # Copy Flutter project files