diff --git a/environment.yml b/environment.yml
index 219cefe..505d4f6 100644
--- a/environment.yml
+++ b/environment.yml
@@ -14,4 +14,5 @@ dependencies:
   - python=3.8
   - pandas
   - scikit-learn
+  - matplotlib-base=3.5.1
 prefix: /home/olivier/bin/anaconda/envs/mdmtaskweb