diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index d785884..753d801 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -9,10 +9,10 @@ jobs:
     name: Test
     uses: swiftlang/github-workflows/.github/workflows/swift_package_test.yml@main
     with:
-      linux_os_versions: '["noble", "jammy", "focal", "rhel-ubi9"]'
+      linux_os_versions: '["noble", "jammy", "focal", "rhel-ubi9", "bookworm"]'
       linux_swift_versions: '["6.1", "nightly-main"]'
       linux_pre_build_command: |
-        if command -v apt-get >/dev/null 2>&1 ; then # noble, jammy, focal
+        if command -v apt-get >/dev/null 2>&1 ; then # noble, jammy, focal, or bookworm
           apt-get update -y
 
           # Test dependencies
diff --git a/README.md b/README.md
index 5ab197e..233b7cb 100644
--- a/README.md
+++ b/README.md
@@ -232,6 +232,7 @@ The table below describes the current level of support that Subprocess has for v
 | **Ubuntu 22.04** | Supported |
 | **Ubuntu 24.04** | Supported |
 | **Red Hat Universal Base Image 9** | Supported |
+| **Debian 12** | Supported |
 | **Windows** | Supported |
 
 <p align="right">(<a href="#readme-top">back to top</a>)</p>