diff --git a/deploy/open/Dockerfile.build b/deploy/open/Dockerfile.build
index 4642751..5fbd3a7 100644
--- a/deploy/open/Dockerfile.build
+++ b/deploy/open/Dockerfile.build
@@ -1,5 +1,5 @@
 # Stage 1: Build the Flutter web client
-FROM ghcr.io/cirruslabs/flutter:3.22.2 as flutter_builder
+FROM ghcr.io/cirruslabs/flutter:3.27.1 as flutter_builder
 
 # Copy Flutter project
 COPY AINoval/ /flutter_app/