diff --git a/constant.go b/constant.go
index 897de7b..24bae99 100644
--- a/constant.go
+++ b/constant.go
@@ -1,7 +1,7 @@
 package mapper
 
 const (
-	packageVersion = "0.7.9"
+	packageVersion = "0.7.10"
 	mapperTagKey   = "mapper"
 	jsonTagKey     = "json"
 	IgnoreTagValue = "-"
diff --git a/go.mod b/go.mod
deleted file mode 100644
index 0adb7db..0000000
--- a/go.mod
+++ /dev/null
@@ -1,3 +0,0 @@
-module github.com/devfeel/mapper
-
-go 1.16
diff --git a/go.sum b/go.sum
deleted file mode 100644
index e69de29..0000000
diff --git a/version.md b/version.md
index fa30db0..78484b8 100644
--- a/version.md
+++ b/version.md
@@ -1,5 +1,9 @@
 ## devfeel/mapper
 
+#### Version 0.7.10
+* BugFix: remove go mod file.
+* 2022-04-20 20:00 in ShangHai
+
 #### Version 0.7.9
 * Feature: add feature flag for ignore tag.
 * Tips: about "-" we keep default behavior as previous version by default, which is use field name as key when mapping structure.