diff --git a/phases/p3/closer/requirements.txt b/phases/p3/closer/requirements.txt
index e557e7f..c53377f 100644
--- a/phases/p3/closer/requirements.txt
+++ b/phases/p3/closer/requirements.txt
@@ -1,5 +1,5 @@
 # Web framework
-fastapi>=0.115.0
+fastapi>=0.139.2
 uvicorn[standard]>=0.34.0
 
 # Validation & config