diff --git a/git/Dockerfile b/git/Dockerfile
index 87cb3d1ab..87b31214a 100644
--- a/git/Dockerfile
+++ b/git/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:24.04
+FROM ubuntu:24.04@sha256:99c35190e22d294cdace2783ac55effc69d32896daaa265f0bbedbcde4fbe3e5
 
 RUN apt-get update && apt-get install --no-install-recommends -y git=1:2.43.0-1ubuntu7.1 openssh-client=1:9.6p1-3ubuntu13.4 && rm -rf /var/lib/apt/lists/*