diff --git a/environment.yml b/environment.yml
index 7a9f36ce19cb9fd7e3e97040827a0dae3d9c0faf..fca55bf38b794bbd633e305121430b14050093dc 100644
--- a/environment.yml
+++ b/environment.yml
@@ -6,5 +6,5 @@ dependencies:
   - scipy       = 1.4.*
   - matplotlib  = 3.1.*
   - numpy
-  - nutopy      = 0.3.*
+  - nutopy      = 0.4.*
   - jupyterlab  = 3.0.*