diff --git a/dockerfiles/Dockerfile.snow-chibi-install-test b/dockerfiles/Dockerfile.snow-chibi-install-test
index 380d28d..7990ba3 100644
--- a/dockerfiles/Dockerfile.snow-chibi-install-test
+++ b/dockerfiles/Dockerfile.snow-chibi-install-test
@@ -1,5 +1,6 @@
 ARG SCHEME=chibi
 FROM schemers/chicken AS build
+RUN apt-get update && apt-get install -y git
 RUN git clone https://gitea.scheme.org/Retropikzel/compile-r7rs.git --depth=1
 RUN cd compile-r7rs && make && make install
 
diff --git a/dockerfiles/Dockerfile.test b/dockerfiles/Dockerfile.test
index a985c45..9d9e182 100644
--- a/dockerfiles/Dockerfile.test
+++ b/dockerfiles/Dockerfile.test
@@ -1,5 +1,6 @@
 ARG SCHEME=chibi
 FROM schemers/chicken AS build
+RUN apt-get update && apt-get install -y git
 RUN git clone https://gitea.scheme.org/Retropikzel/compile-r7rs.git --depth=1
 RUN cd compile-r7rs && make && make install