diff --git a/.github/workflows/gin.yml b/.github/workflows/gin.yml
index db934016..450685b4 100644
--- a/.github/workflows/gin.yml
+++ b/.github/workflows/gin.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        go: [1.14, 1.15, 1.16, 1.17, 1.18]
+        go: [1.15, 1.16, 1.17, 1.18]
         test-tags: ['', nomsgpack, jsoniter, go_json]
         include:
           - os: ubuntu-latest
diff --git a/README.md b/README.md
index 5cc8321b..2477d0b0 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ Gin is a web framework written in Go (Golang). It features a martini-like API wi
 
 To install Gin package, you need to install Go and set your Go workspace first.
 
-1. You first need [Go](https://golang.org/) installed (**version 1.14+ is required**), then you can use the below Go command to install Gin.
+1. You first need [Go](https://golang.org/) installed (**version 1.15+ is required**), then you can use the below Go command to install Gin.
 
 ```sh
 $ go get -u github.com/gin-gonic/gin
diff --git a/debug.go b/debug.go
index 25fd7c87..8367de9c 100644
--- a/debug.go
+++ b/debug.go
@@ -67,7 +67,7 @@ func getMinVer(v string) (uint64, error) {
 
 func debugPrintWARNINGDefault() {
 	if v, e := getMinVer(runtime.Version()); e == nil && v <= ginSupportMinGoVer {
-		debugPrint(`[WARNING] Now Gin requires Go 1.14+.
+		debugPrint(`[WARNING] Now Gin requires Go 1.15+.
 
 `)
 	}
diff --git a/debug_test.go b/debug_test.go
index 4ac55fe1..5c29a74b 100644
--- a/debug_test.go
+++ b/debug_test.go
@@ -104,7 +104,7 @@ func TestDebugPrintWARNINGDefault(t *testing.T) {
 	})
 	m, e := getMinVer(runtime.Version())
 	if e == nil && m <= ginSupportMinGoVer {
-		assert.Equal(t, "[GIN-debug] [WARNING] Now Gin requires Go 1.14+.\n\n[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
+		assert.Equal(t, "[GIN-debug] [WARNING] Now Gin requires Go 1.15+.\n\n[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
 	} else {
 		assert.Equal(t, "[GIN-debug] [WARNING] Creating an Engine instance with the Logger and Recovery middleware already attached.\n\n", re)
 	}
diff --git a/go.mod b/go.mod
index f7590661..283c6a50 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/json-iterator/go v1.1.12
 	github.com/mattn/go-isatty v0.0.14
 	github.com/pelletier/go-toml/v2 v2.0.2
-	github.com/stretchr/testify v1.7.4
+	github.com/stretchr/testify v1.7.5
 	github.com/ugorji/go/codec v1.2.7
 	golang.org/x/net v0.0.0-20210226172049-e18ecbb05110
 	google.golang.org/protobuf v1.28.0
diff --git a/go.sum b/go.sum
index a590d38f..4d6c06ea 100644
--- a/go.sum
+++ b/go.sum
@@ -51,8 +51,8 @@ github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.7.2/go.mod h1:R6va5+xMeoiuVRoj+gSkQ7d3FALtqAAGI1FQKckRals=
-github.com/stretchr/testify v1.7.4 h1:wZRexSlwd7ZXfKINDLsO4r7WBt3gTKONc6K/VesHvHM=
-github.com/stretchr/testify v1.7.4/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
+github.com/stretchr/testify v1.7.5 h1:s5PTfem8p8EbKQOctVV53k6jCJt3UX4IEJzwh+C324Q=
+github.com/stretchr/testify v1.7.5/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/ugorji/go v1.2.7/go.mod h1:nF9osbDWLy6bDVv/Rtoh6QgnvNDpmCalQV5urGCCS6M=
 github.com/ugorji/go/codec v1.2.7 h1:YPXUKf7fYbp/y8xloBqZOw2qaVggbfwMlI8WM3wZUJ0=
 github.com/ugorji/go/codec v1.2.7/go.mod h1:WGN1fab3R1fzQlVQTkfxVtIBhWDRqOviHU95kRgeqEY=