diff --git a/ci/recipe/meta.yaml b/ci/recipe/meta.yaml
index dbbf867b..c898f94f 100644
--- a/ci/recipe/meta.yaml
+++ b/ci/recipe/meta.yaml
@@ -25,6 +25,8 @@ requirements:
     - biom-format >=2.1.5,<2.2.0
     - ijson
     - h5py
+    - matplotlib 3.1.0
+    - matplotlib-base 3.1.0
     - qiime2 {{ release }}.*
 
 test: