diff --git a/.travis.yml b/.travis.yml
index 3a14c34ab978884721804c4767ce59b0b1eefe9c..a8331a453512218376476b580597f2f6ee33a8c3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,6 @@
 language: go
 go:
-- "1.10.2"
+- "1.11.x"
 install:
 - go get -u github.com/golang/dep/cmd/dep
 - go get github.com/mattn/goveralls
diff --git a/config.go b/config.go
index 6418b5ad39248388706fafce15f34e9aa739ab44..48553098a7d0a0a8478de1e57c1069527899f319 100644
--- a/config.go
+++ b/config.go
@@ -34,34 +34,34 @@ func newDefaultConfig() *Config {
 	hostnames = append(hostnames, []string{"localhost", "127.0.0.1"}...)
 
 	return &Config{
-		AccessTokenDuration:         time.Duration(720) * time.Hour,
-		CookieAccessName:            "kc-access",
-		CookieRefreshName:           "kc-state",
-		EnableAuthorizationCookies:  true,
-		EnableAuthorizationHeader:   true,
-		EnableDefaultDeny:           true,
-		EnableSessionCookies:        true,
-		EnableTokenHeader:           true,
-		HTTPOnlyCookie:              true,
-		Headers:                     make(map[string]string),
-		LetsEncryptCacheDir:         "./cache/",
-		MatchClaims:                 make(map[string]string),
-		MaxIdleConns:                100,
-		MaxIdleConnsPerHost:         50,
-		OAuthURI:                    "/oauth",
-		OpenIDProviderTimeout:       30 * time.Second,
-		PreserveHost:                false,
-		SelfSignedTLSExpiration:     3 * time.Hour,
-		SelfSignedTLSHostnames:      hostnames,
-		RequestIDHeader:             "X-Request-ID",
-		ResponseHeaders:             make(map[string]string),
-		SecureCookie:                true,
-		ServerIdleTimeout:           120 * time.Second,
-		ServerReadTimeout:           10 * time.Second,
-		ServerWriteTimeout:          10 * time.Second,
-		SkipOpenIDProviderTLSVerify: false,
-		SkipUpstreamTLSVerify:       true,
-		Tags: make(map[string]string, 0),
+		AccessTokenDuration:           time.Duration(720) * time.Hour,
+		CookieAccessName:              "kc-access",
+		CookieRefreshName:             "kc-state",
+		EnableAuthorizationCookies:    true,
+		EnableAuthorizationHeader:     true,
+		EnableDefaultDeny:             true,
+		EnableSessionCookies:          true,
+		EnableTokenHeader:             true,
+		HTTPOnlyCookie:                true,
+		Headers:                       make(map[string]string),
+		LetsEncryptCacheDir:           "./cache/",
+		MatchClaims:                   make(map[string]string),
+		MaxIdleConns:                  100,
+		MaxIdleConnsPerHost:           50,
+		OAuthURI:                      "/oauth",
+		OpenIDProviderTimeout:         30 * time.Second,
+		PreserveHost:                  false,
+		SelfSignedTLSExpiration:       3 * time.Hour,
+		SelfSignedTLSHostnames:        hostnames,
+		RequestIDHeader:               "X-Request-ID",
+		ResponseHeaders:               make(map[string]string),
+		SecureCookie:                  true,
+		ServerIdleTimeout:             120 * time.Second,
+		ServerReadTimeout:             10 * time.Second,
+		ServerWriteTimeout:            10 * time.Second,
+		SkipOpenIDProviderTLSVerify:   false,
+		SkipUpstreamTLSVerify:         true,
+		Tags:                          make(map[string]string, 0),
 		UpstreamExpectContinueTimeout: 10 * time.Second,
 		UpstreamKeepaliveTimeout:      10 * time.Second,
 		UpstreamKeepalives:            true,