diff --git a/vendor/github.com/json-iterator/go/iter_object.go b/vendor/github.com/json-iterator/go/iter_object.go
index 1c57576..58ee89c 100644
--- a/vendor/github.com/json-iterator/go/iter_object.go
+++ b/vendor/github.com/json-iterator/go/iter_object.go
@@ -112,6 +112,9 @@
 	c := iter.nextToken()
 	var field string
 	if c == '{' {
+		if !iter.incrementDepth() {
+			return false
+		}
 		c = iter.nextToken()
 		if c == '"' {
 			iter.unreadByte()
@@ -121,6 +124,7 @@
 				iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
 			}
 			if !callback(iter, field) {
+				iter.decrementDepth()
 				return false
 			}
 			c = iter.nextToken()
@@ -131,20 +135,23 @@
 					iter.ReportError("ReadObject", "expect : after object field, but found "+string([]byte{c}))
 				}
 				if !callback(iter, field) {
+					iter.decrementDepth()
 					return false
 				}
 				c = iter.nextToken()
 			}
 			if c != '}' {
 				iter.ReportError("ReadObjectCB", `object not ended with }`)
+				iter.decrementDepth()
 				return false
 			}
-			return true
+			return iter.decrementDepth()
 		}
 		if c == '}' {
-			return true
+			return iter.decrementDepth()
 		}
-		iter.ReportError("ReadObjectCB", `expect " after }, but found `+string([]byte{c}))
+		iter.ReportError("ReadObjectCB", `expect " after {, but found `+string([]byte{c}))
+		iter.decrementDepth()
 		return false
 	}
 	if c == 'n' {
@@ -159,15 +166,20 @@
 func (iter *Iterator) ReadMapCB(callback func(*Iterator, string) bool) bool {
 	c := iter.nextToken()
 	if c == '{' {
+		if !iter.incrementDepth() {
+			return false
+		}
 		c = iter.nextToken()
 		if c == '"' {
 			iter.unreadByte()
 			field := iter.ReadString()
 			if iter.nextToken() != ':' {
 				iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
+				iter.decrementDepth()
 				return false
 			}
 			if !callback(iter, field) {
+				iter.decrementDepth()
 				return false
 			}
 			c = iter.nextToken()
@@ -175,23 +187,27 @@
 				field = iter.ReadString()
 				if iter.nextToken() != ':' {
 					iter.ReportError("ReadMapCB", "expect : after object field, but found "+string([]byte{c}))
+					iter.decrementDepth()
 					return false
 				}
 				if !callback(iter, field) {
+					iter.decrementDepth()
 					return false
 				}
 				c = iter.nextToken()
 			}
 			if c != '}' {
 				iter.ReportError("ReadMapCB", `object not ended with }`)
+				iter.decrementDepth()
 				return false
 			}
-			return true
+			return iter.decrementDepth()
 		}
 		if c == '}' {
-			return true
+			return iter.decrementDepth()
 		}
-		iter.ReportError("ReadMapCB", `expect " after }, but found `+string([]byte{c}))
+		iter.ReportError("ReadMapCB", `expect " after {, but found `+string([]byte{c}))
+		iter.decrementDepth()
 		return false
 	}
 	if c == 'n' {