diff --git a/.travis.yml b/.travis.yml
index 6fa211d4b4..32d4e3db03 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: go
 sudo: false
 go:
-  - "1.11"
+  - '1.12'
 install:
   - "go mod download"
 env:
diff --git a/README.md b/README.md
index 889e0e6903..3ec9cef8ff 100644
--- a/README.md
+++ b/README.md
@@ -36,7 +36,7 @@ go get -u -v github.com/Dreamacro/clash
 
 Pre-built binaries are available: [release](https://github.com/Dreamacro/clash/releases)
 
-Requires Go >= 1.11.
+Requires Go >= 1.12.
 
 ## Daemon
 
diff --git a/adapters/outbound/http.go b/adapters/outbound/http.go
index 485688361e..cf1fb7484f 100644
--- a/adapters/outbound/http.go
+++ b/adapters/outbound/http.go
@@ -101,8 +101,6 @@ func NewHttp(option HttpOption) *Http {
 		tlsConfig = &tls.Config{
 			InsecureSkipVerify: option.SkipCertVerify,
 			ClientSessionCache: getClientSessionCache(),
-			MinVersion:         tls.VersionTLS11,
-			MaxVersion:         tls.VersionTLS12,
 			ServerName:         option.Server,
 		}
 	}
diff --git a/adapters/outbound/socks5.go b/adapters/outbound/socks5.go
index 2b4613d63e..97e883e4f2 100644
--- a/adapters/outbound/socks5.go
+++ b/adapters/outbound/socks5.go
@@ -118,8 +118,6 @@ func NewSocks5(option Socks5Option) *Socks5 {
 		tlsConfig = &tls.Config{
 			InsecureSkipVerify: option.SkipCertVerify,
 			ClientSessionCache: getClientSessionCache(),
-			MinVersion:         tls.VersionTLS11,
-			MaxVersion:         tls.VersionTLS12,
 			ServerName:         option.Server,
 		}
 	}
diff --git a/constant/path.go b/constant/path.go
index ad7b847ded..5d08e36cd4 100644
--- a/constant/path.go
+++ b/constant/path.go
@@ -2,7 +2,6 @@ package constant
 
 import (
 	"os"
-	"os/user"
 	P "path"
 )
 
@@ -16,17 +15,11 @@ type path struct {
 }
 
 func init() {
-	currentUser, err := user.Current()
-	var homedir string
+	homedir, err := os.UserHomeDir()
 	if err != nil {
-		dir := os.Getenv("HOME")
-		if dir == "" {
-			dir, _ = os.Getwd()
-		}
-		homedir = dir
-	} else {
-		homedir = currentUser.HomeDir
+		homedir, _ = os.Getwd()
 	}
+
 	homedir = P.Join(homedir, ".config", Name)
 	Path = &path{homedir: homedir}
 }
diff --git a/main.go b/main.go
index be91250aca..7733010194 100644
--- a/main.go
+++ b/main.go
@@ -24,6 +24,9 @@ func init() {
 }
 
 func main() {
+	// enable tls 1.3 and remove when go 1.13
+	os.Setenv("GODEBUG", os.Getenv("GODEBUG")+",tls13=1")
+
 	if homedir != "" {
 		if !filepath.IsAbs(homedir) {
 			currentDir, _ := os.Getwd()