diff --git a/rtd_environment.yml b/rtd_environment.yml
index d80f870..f66d232 100644
--- a/rtd_environment.yml
+++ b/rtd_environment.yml
@@ -6,6 +6,6 @@ dependencies:
   - packaging
   - python>=3.6
   - ipython>=6.2
-  - matplotlib>=2.0
+  - matplotlib-base>=2.0
   - numpy>=1.5
   - scipy