diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c7a7ca2f..8f486586 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -101,6 +101,7 @@ jobs:
           - ubuntu:20.04 # glibc 2.31
           - ubuntu:22.04 # glibc 2.35
           - debian:11-slim # glibc 2.31
+          - debian:bookworm-slim # glibc 2.36
           - fedora:latest # glibc 2.36 (as of fedora 37)
         tool:
           # valgrind: installing snap to container is difficult...