diff --git a/langkit/examples/Injections.ipynb b/langkit/examples/Injections.ipynb
index c821b13..9fee355 100644
--- a/langkit/examples/Injections.ipynb
+++ b/langkit/examples/Injections.ipynb
@@ -21,7 +21,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "%pip install -U langkit[all]"
+    "%pip install -U 'langkit[all]'"
    ]
   },
   {