diff --git a/.tools/envs/testenv-numpy.yml b/.tools/envs/testenv-numpy.yml
index f54e96c17..2b9f41fb8 100644
--- a/.tools/envs/testenv-numpy.yml
+++ b/.tools/envs/testenv-numpy.yml
@@ -17,7 +17,7 @@ dependencies:
   - cloudpickle  # run, tests
   - joblib  # run, tests
   - plotly  # run, tests
-  - pybaum >= 0.1.2  # run, tests
+  - pybaum>=0.1.2  # run, tests
   - scipy>=1.2.1  # run, tests
   - sqlalchemy  # run, tests
   - seaborn  # dev, tests