diff --git a/bob/devtools/data/conda_build_config.yaml b/bob/devtools/data/conda_build_config.yaml
index 63e3dd1d96f7f2fc81ecf8fe85f4df1634f72f51..acfd384463ac2695d4b92ae2a6ec79f56bf68b96 100644
--- a/bob/devtools/data/conda_build_config.yaml
+++ b/bob/devtools/data/conda_build_config.yaml
@@ -402,7 +402,7 @@ make:
 matplotlib:
   - 3.5.1
 mkl:  # [x86 or x86_64]
-  - 2022.0.1  # [x86 or x86_64]
+  - 2021.4.0  # [x86 or x86_64]
 ncurses:
   - 6.3
 nose: