diff --git a/docs/dependency-locking.md b/docs/dependency-locking.md
index 380814fb..23a3fdb4 100644
--- a/docs/dependency-locking.md
+++ b/docs/dependency-locking.md
@@ -11,7 +11,7 @@ Agent Reach uses `constraints.txt` as a reproducible dependency baseline.
 ## Install with constraints
 
 ```bash
-pip install -c constraints.txt -e .[dev]
+pip install -c constraints.txt -e '.[dev]'
 ```
 
 ## Update workflow