diff --git a/go.mod b/go.mod
index f8b554b..650c40c 100644
--- a/go.mod
+++ b/go.mod
@@ -4,7 +4,7 @@ go 1.25.5
 
 require (
 	github.com/a2aproject/a2a-go v0.3.12
-	github.com/cloudwego/eino v0.8.2
+	github.com/cloudwego/eino v0.8.5
 	github.com/danielgtaylor/huma/v2 v2.37.2
 	github.com/go-chi/chi/v5 v5.2.5
 	github.com/go-playground/validator/v10 v10.30.1
diff --git a/go.sum b/go.sum
index 52f81db..ba6b2cd 100644
--- a/go.sum
+++ b/go.sum
@@ -30,8 +30,8 @@ github.com/clipperhouse/uax29/v2 v2.7.0 h1:+gs4oBZ2gPfVrKPthwbMzWZDaAFPGYK72F0NJ
 github.com/clipperhouse/uax29/v2 v2.7.0/go.mod h1:EFJ2TJMRUaplDxHKj1qAEhCtQPW2tJSwu5BF98AuoVM=
 github.com/cloudwego/base64x v0.1.6 h1:t11wG9AECkCDk5fMSoxmufanudBtJ+/HemLstXDLI2M=
 github.com/cloudwego/base64x v0.1.6/go.mod h1:OFcloc187FXDaYHvrNIjxSe8ncn0OOM8gEHfghB2IPU=
-github.com/cloudwego/eino v0.8.2 h1:5KBLd7WNpxc0Mc/tfoyTNxxIpbmEkmmD2jZ1PXvIwTI=
-github.com/cloudwego/eino v0.8.2/go.mod h1:+2N4nsMPxA6kGBHpH+75JuTfEcGprAMTdsZESrShKpU=
+github.com/cloudwego/eino v0.8.5 h1:ZNRJBiOW8eEOxMKjR4KbxW9Px9+DtETi8k7Yk1cuzv8=
+github.com/cloudwego/eino v0.8.5/go.mod h1:+2N4nsMPxA6kGBHpH+75JuTfEcGprAMTdsZESrShKpU=
 github.com/danielgtaylor/huma/v2 v2.37.2 h1:Nf9vjy2sxBJFaupPlthXL/Hy2+LurfVbaKHmCMEI7xE=
 github.com/danielgtaylor/huma/v2 v2.37.2/go.mod h1:95S04G/lExFRYlBkKaBaZm9lVmxRmqX9f2CgoOZ11AM=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=