diff --git a/README.md b/README.md
index 8d7b5ec4..960c66dc 100644
--- a/README.md
+++ b/README.md
@@ -87,7 +87,7 @@ 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 1.15+ is required**), then you can use the below Go command to install Gin.
+1. You first need [Go](https://golang.org/) installed (**version 1.16+ 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 b9f8234a..cbcedbc9 100644
--- a/debug.go
+++ b/debug.go
@@ -12,7 +12,7 @@ import (
 	"strings"
 )
 
-const ginSupportMinGoVer = 15
+const ginSupportMinGoVer = 16
 
 // IsDebugging returns true if the framework is running in debug mode.
 // Use SetMode(gin.ReleaseMode) to disable debug mode.
@@ -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 1.15+.
+		debugPrint(`[WARNING] Now Gin requires Go 1.16+.
 
 `)
 	}
diff --git a/debug_test.go b/debug_test.go
index bf0e6ab8..abe8b41c 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 1.15+.\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 1.16+.\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)
 	}