diff --git a/.ci/conda-envs/ci-core.txt b/.ci/conda-envs/ci-core.txt
index a0763580c7f3..46d20963ed98 100644
--- a/.ci/conda-envs/ci-core.txt
+++ b/.ci/conda-envs/ci-core.txt
@@ -18,7 +18,7 @@
 
 # direct imports
 cffi>=1.16
-dask>=2023.5.0
+dask>=2023.5.0,<2024.12
 joblib>=1.3.2
 matplotlib-base>=3.7.3
 numpy>=1.24.4