diff --git a/deploy/Dockerfile.gitea-mcp b/deploy/Dockerfile.gitea-mcp
index 3c6aad0..758f67a 100644
--- a/deploy/Dockerfile.gitea-mcp
+++ b/deploy/Dockerfile.gitea-mcp
@@ -26,11 +26,18 @@ RUN apt-get update \
     && apt-get install -y --no-install-recommends ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
-COPY --from=docker.gitea.com/gitea-mcp-server:latest /app/gitea-mcp /usr/local/bin/gitea-mcp
+# Pinned by DIGEST, not :latest. `latest` moves, and a rebuild that silently
+# ships a different server version is indistinguishable from a broken rebuild —
+# chased exactly that here when a probe started failing after a rebuild.
+# This digest is gitea-mcp-server 1.6.0 (label org.opencontainers.image.version),
+# the build that was running when this image was introduced.
+# To bump: skopeo inspect docker://docker.gitea.com/gitea-mcp-server:latest
+COPY --from=docker.gitea.com/gitea-mcp-server@sha256:dda8d56e6a91fa89cad186becc27c7aa83d74acdd5dc69f89af840d7bb78a631 /app/gitea-mcp /usr/local/bin/gitea-mcp
 
 WORKDIR /app
 
-# Kept as ENTRYPOINT so the plain (non-injected) path behaves exactly like
-# upstream. mcpd REPLACES this with the sourcing wrapper when the server opts
-# into injected delivery — that is why a shell has to exist in the image.
-ENTRYPOINT ["/usr/local/bin/gitea-mcp"]
+# CMD, not ENTRYPOINT — matching upstream, which sets Cmd ["/app/gitea-mcp"] and
+# no entrypoint. mcpd maps a server's `command` to k8s `args`, which REPLACES
+# Cmd but only appends to an ENTRYPOINT; keeping the same form means the plain
+# (non-injected) path behaves byte-identically to upstream.
+CMD ["/usr/local/bin/gitea-mcp"]