diff --git a/environment-ci.yml b/environment-ci.yml
index d89e169..8ab073b 100644
--- a/environment-ci.yml
+++ b/environment-ci.yml
@@ -22,4 +22,4 @@ dependencies:
   - xmlschema
   - zarr
   - pip:
-    - mdformat-gfm
+      - mdformat-gfm