diff --git a/xfel/conda_envs/psana_environment.yml b/xfel/conda_envs/psana_environment.yml
index 9dd9554815..9a1048e81d 100644
--- a/xfel/conda_envs/psana_environment.yml
+++ b/xfel/conda_envs/psana_environment.yml
@@ -71,6 +71,6 @@ dependencies:
  - mysql
  - mysqlclient
 
- # temporarily pin numpy version
+ # Avoid numpy 1.21.[01234]
  # See https://github.com/cctbx/cctbx_project/issues/627
- - numpy=1.20
+ - numpy=1.20|>=1.21.5
diff --git a/xfel/conda_envs/psana_lcls_environment.yml b/xfel/conda_envs/psana_lcls_environment.yml
index 8ea04c797d..51864806df 100644
--- a/xfel/conda_envs/psana_lcls_environment.yml
+++ b/xfel/conda_envs/psana_lcls_environment.yml
@@ -74,6 +74,6 @@ dependencies:
  - mysql
  - mysqlclient
 
- # temporarily pin numpy version
+ # Avoid numpy 1.21.[01234]
  # See https://github.com/cctbx/cctbx_project/issues/627
- - numpy=1.20
+ - numpy=1.20|>=1.21.5