diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..a1b6291
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,4 @@
+.git
+tmp
+.idea
+
diff --git a/Dockerfile b/Dockerfile
index 2971034..5396825 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-ARG GO_VERSION=1.11
+ARG GO_VERSION=1.13
 ARG TARGET=alpine:3.9
 
 FROM golang:${GO_VERSION}-alpine AS builder