diff --git a/Dockerfile b/Dockerfile
index fc68c23..70bb83d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -88,8 +88,8 @@ ENV SYSTEM_USER=opencode
 # Global build arguments
 # ============================================
 # renovate: datasource=npm depName=opencode-ai
-ARG OPENCODE_VERSION=1.18.4
-ARG OPENCODE_SHA256=6060f03c1c45afcd901a05fdd8eae60b7e82c7113ffa092792be30d6e8117eda
+ARG OPENCODE_VERSION=1.18.5
+ARG OPENCODE_SHA256=e86ed5a01d91564b6b02c360a752695b1910def48db28a63454a49b78b5f9c43
 
 # ============================================
 # Stage: OpenCode