diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index a455b98..0fa6a26 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -2,7 +2,7 @@ name: test
 on: [push]
 
 env:
-  LIBZIM_DL_VERSION: "9.0.0"
+  LIBZIM_DL_VERSION: "2023-12-04"
   MACOSX_DEPLOYMENT_TARGET: "12.0"
 
 jobs:
diff --git a/.github/workflows/wheels.yml b/.github/workflows/wheels.yml
index b97bf28..a5b5df3 100644
--- a/.github/workflows/wheels.yml
+++ b/.github/workflows/wheels.yml
@@ -7,7 +7,7 @@ on:
       - main
 
 env:
-  LIBZIM_DL_VERSION: "9.0.0"
+  LIBZIM_DL_VERSION: "2023-12-04"
   MACOSX_DEPLOYMENT_TARGET: "12.0"
   CIBW_ENVIRONMENT_PASS_LINUX: "LIBZIM_DL_VERSION"
   CIBW_BUILD_VERBOSITY: "3"