diff --git a/README.md b/README.md
index a2dbf43..c439503 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ Introduction
 [![GoDoc](https://img.shields.io/badge/api-reference-blue.svg)](https://godoc.org/github.com/funny/slab)
 
 Slab allocation memory pools for Go.
+forked from https://github.com/funny/slab and add go.mod
 
 Usage
 =====
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..bfa2984
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,5 @@
+module github.com/xiehui3651/slab
+
+go 1.19
+
+require github.com/funny/utest v0.0.0-20161029064919-43870a374500
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..9637fe6
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,2 @@
+github.com/funny/utest v0.0.0-20161029064919-43870a374500 h1:Z0r1CZnoIWFB/Uiwh1BU5FYmuFe6L5NPi6XWQEmsTRg=
+github.com/funny/utest v0.0.0-20161029064919-43870a374500/go.mod h1:mUn39tBov9jKnTWV1RlOYoNzxdBFHiSzXWdY1FoNGGg=