diff --git a/environment.yml b/environment.yml
index 68367936..0c5d01a0 100644
--- a/environment.yml
+++ b/environment.yml
@@ -7,5 +7,6 @@ dependencies:
   - erddapy
   - iris>=3.3.0
   - jupyter
+  - netcdf4<1.6.1
   - pendulum>=2.0.1
   - xarray
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 04e42307..70317660 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -15,7 +15,7 @@ joblib
 jupyter
 mypy
 nbsphinx
-netcdf4
+netcdf4<1.6.1
 pendulum>=2.0.1
 pooch
 pre-commit