diff --git a/envs/environment.yaml b/envs/environment.yaml
index 4aefcb9a..8bd7428f 100644
--- a/envs/environment.yaml
+++ b/envs/environment.yaml
@@ -53,6 +53,7 @@ dependencies:
   - tqdm
   - pytz
   - tabula-py
+  - mergedeep
 
   - pip:
     - vresutils>=0.3.1