diff --git a/extra_requirements/requirements-tests.txt b/extra_requirements/requirements-tests.txt
index 9f38c71e..01a9fb85 100644
--- a/extra_requirements/requirements-tests.txt
+++ b/extra_requirements/requirements-tests.txt
@@ -1,2 +1,2 @@
 strax==1.3.0
-ax_env==0.3.0
+ax_env==0.3.3