diff --git a/Dockerfile b/Dockerfile
index 834e033..1daa277 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=1.17.20
-ARG OPENCODE_SHA256=aaf91e431e00483022214d418ed83192a7c470984393bafab0c594cd1d44bcc0
+ARG OPENCODE_VERSION=1.18.1
+ARG OPENCODE_SHA256=290b0ccfa63cfec793bdb123f6fd46ec38a8d19e33c202a3631810bc2f61170c
 
 # ============================================
 # Stage: OpenCode