diff --git a/docs/environment.yml b/docs/environment.yml
index 18e932d..5fb6bb8 100644
--- a/docs/environment.yml
+++ b/docs/environment.yml
@@ -9,6 +9,6 @@ dependencies:
   - pydata-sphinx-theme
   - yarn=1
   - pip:
-    - jupyterlite-xeus-python >= 0.8.0,<0.9.0
+    - jupyterlite-xeus-python >= 0.9.0,<0.10.0
     - sphinxcontrib-video
     - ..
diff --git a/environment.yml b/environment.yml
index b269bd4..8b2ca8f 100644
--- a/environment.yml
+++ b/environment.yml
@@ -11,4 +11,4 @@ dependencies:
     - voila>=0.5.0a3,<0.6.0
     - voila-material>=0.4.3
     - jupyterlite-core[lab]>=0.1.0,<0.2.0
-    - jupyterlite-xeus-python >= 0.7.0
+    - jupyterlite-xeus-python >= 0.9.0