diff --git a/fastapi/dependencies/utils.py b/fastapi/dependencies/utils.py
index 80f9c76e9..21efbed8a 100644
--- a/fastapi/dependencies/utils.py
+++ b/fastapi/dependencies/utils.py
@@ -445,7 +445,7 @@ def analyze_param(
         )
         field_info = value
         if isinstance(field_info, FieldInfo):
-            field_info.annotation = type_annotation
+            field_info.annotation = use_annotation
 
     # Get Depends from type annotation
     if depends is not None and depends.dependency is None: