diff --git a/Dockerfile.jenkins b/Dockerfile.jenkins
index 7928040..99d6f90 100644
--- a/Dockerfile.jenkins
+++ b/Dockerfile.jenkins
@@ -1,4 +1,7 @@
-FROM schemers/chibi:head
+FROM debian:trixie-slim
 RUN apt-get update && apt-get install -y \
     gcc ca-certificates libffi-dev docker.io make
+RUN git clone https://github.com/ashinn/chibi-scheme.git --depth=1 \
+    && make -C chibi-scheme \
+    && make -C chibi-scheme install
 RUN snow-chibi install --impls=chibi --always-yes retropikzel.test-r7rs