diff --git a/Dockerfile b/Dockerfile
index 267679f..62db9e2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,7 +2,7 @@
 # when given no command and cannot run without a terminal. Cubeship runs an
 # image's own command, so this image changes that to the headless server, which
 # also serves the web UI, and adds the git the agent works with.
-FROM ghcr.io/anomalyco/opencode:2.0.15
+FROM ghcr.io/anomalyco/opencode:2.0.18
 RUN apk add --no-cache git openssh-client
 # The directory the server works in when a request names none.
 WORKDIR /workspace