diff --git a/Dockerfile b/Dockerfile
index 010cc2f..4b4676c 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=1.18.2
-ARG OPENCODE_SHA256=2131df65241527932a74c62a673d774e52363936b986d4737c9c4b77c1d5c16c
+ARG OPENCODE_VERSION=1.18.3
+ARG OPENCODE_SHA256=102fd1da136b603f4bcc3d74c2c9cf0d6906f44865f2233f3e0612390d2e5ead
 
 # ============================================
 # Stage: OpenCode