diff --git a/circle.yml b/circle.yml
index 319ddb8f74..9ac6871649 100644
--- a/circle.yml
+++ b/circle.yml
@@ -124,8 +124,8 @@ jobs:
                   name: check git version
                   command: |
                     ACTUAL_VERSION=$(docker compose run test-factory-all-included git --version)
-                    if [  "git version 2.30.2" != "${ACTUAL_VERSION}" ]; then
-                      echo "Version mismatch, git package version: git version 2.30.2 != ${ACTUAL_VERSION}"
+                    if [  "git version 2.39.2" != "${ACTUAL_VERSION}" ]; then
+                      echo "Version mismatch, git package version: git version 2.39.2 != ${ACTUAL_VERSION}"
                       exit 1;
                     fi
                     echo "Version ${ACTUAL_VERSION} confirmed"
diff --git a/factory/.env b/factory/.env
index 6c54def1c9..30d7d38b48 100644
--- a/factory/.env
+++ b/factory/.env
@@ -5,7 +5,7 @@
 ## to setup a one off branch and create at a PR to it to release resulting images.
 
 # The debian image the factory is based on
-BASE_IMAGE='debian:bullseye-slim'
+BASE_IMAGE='debian:12-slim'
 
 # Node Versions: https://nodejs.org/en/download/releases/
 FACTORY_DEFAULT_NODE_VERSION='20.13.1'
@@ -14,7 +14,7 @@ FACTORY_DEFAULT_NODE_VERSION='20.13.1'
 NODE_VERSION="${FACTORY_DEFAULT_NODE_VERSION}"
 
 # Update this to deploy the docker factory if you make changes to factory.Dockerfile or install scripts
-FACTORY_VERSION='3.5.7'
+FACTORY_VERSION='4.0.0'
 
 # Chrome versions: https://www.ubuntuupdates.org/package/google_chrome/stable/main/base/google-chrome-stable
 CHROME_VERSION='125.0.6422.60-1'
diff --git a/factory/CHANGELOG.md b/factory/CHANGELOG.md
index 0a9b76ba70..fba7330059 100644
--- a/factory/CHANGELOG.md
+++ b/factory/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Change log
 
+## 4.0.0
+
+* Updated Debian base image to `debian:12-slim` (codename `bookworm`). Addressed in [#1057](https://github.com/cypress-io/cypress-docker-images/pull/1057)
+
 ## 3.5.7
 
 * Updated Yarn (v1 Classic) version from `1.22.19` to `1.22.22`. Addressed in [#1071](https://github.com/cypress-io/cypress-docker-images/pull/1071)