diff --git a/Dockerfile b/Dockerfile
index 1595fd2..88d0886 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 # Leveraging the pre-built Docker images with
 # cargo-chef and the Rust toolchain
-FROM git.kemitix.net/kemitix/git-next-builder:latest AS chef
+FROM git.kemitix.net/kemitix/git-next-builder:2024.07.05 AS chef
 WORKDIR /app
 
 FROM chef AS planner
diff --git a/Dockerfile.builder b/Dockerfile.builder
index 6f37e34..d173393 100644
--- a/Dockerfile.builder
+++ b/Dockerfile.builder
@@ -1,4 +1,4 @@
-FROM docker.io/rust:latest
+FROM docker.io/rust:1.79.0-bookworm
 
 RUN apt-get update && \
   apt-get install -y clang-16 mold && \