diff --git a/deployments/polar.pangeo.io/image/binder/environment.yml b/deployments/polar.pangeo.io/image/binder/environment.yml
index 1a61f69..4818413 100644
--- a/deployments/polar.pangeo.io/image/binder/environment.yml
+++ b/deployments/polar.pangeo.io/image/binder/environment.yml
@@ -30,7 +30,7 @@ dependencies:
   - holoviews
   - libsodium
   - lz4
-  - matplotlib
+  - matplotlib=2.2.2
   - msgpack-python
   - nb_conda_kernels
   - netcdf4>1.4