diff --git a/manifest.json b/manifest.json
index e5245cd..be54608 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Code console environment for running Python code interactively",
         "fr": "Console de code pour exécuter du code Python de manière interactive"
     },
-    "version": "4.0.0~ynh3",
+    "version": "4.0.0~ynh4",
     "url": "https://jupyter.org",
     "upstream": {
         "license": "BSD-3-Clause",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 4e2ebd7..e5520ae 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -9,7 +9,7 @@ pkg_dependencies="python3-dev python3-pip"
 
 nodejs_version="16"
 
-jupyterlab_version="4.0.0a22"
+jupyterlab_version="4.0.0a23"
 
 #=================================================
 # PERSONAL HELPERS