diff --git a/services/Dockerfile b/services/Dockerfile
index 08f835e..ce556bc 100644
--- a/services/Dockerfile
+++ b/services/Dockerfile
@@ -1,4 +1,4 @@
-FROM golang:1.12 as build
+FROM golang:1.13 as build
 WORKDIR /go/src/github.com/mitchell/selfpass/services
 COPY . .
 ENV GO111MODULE on
diff --git a/services/cmd/main.go b/services/cmd/main.go
index 81ee4be..b4e66bc 100644
--- a/services/cmd/main.go
+++ b/services/cmd/main.go
@@ -61,7 +61,7 @@ func main() {
 		Certificates:             []tls.Certificate{keypair},
 		ClientCAs:                caPool,
 		ClientAuth:               tls.RequireAndVerifyClientCert,
-		MinVersion:               tls.VersionTLS12,
+		MinVersion:               tls.VersionTLS13,
 		PreferServerCipherSuites: true,
 		CurvePreferences: []tls.CurveID{
 			tls.CurveP256,