diff --git a/scripts/custom-docker-build b/scripts/custom-docker-build
index 350a628..6c5d2f8 100755
--- a/scripts/custom-docker-build
+++ b/scripts/custom-docker-build
@@ -22,6 +22,10 @@ function print_golang_args() {
             INSTALL_GOLANG_VERSION=1.12.5
             GOLANG_DOWNLOAD_SHA256=aea86e3c73495f205929cfebba0d63f1382c8ac59be081b6351681415f4063cf
             ;;
+        1.13)
+            INSTALL_GOLANG_VERSION=1.13
+            GOLANG_DOWNLOAD_SHA256=68a2297eb099d1a76097905a2ce334e3155004ec08cdea85f24527be3c48e856
+            ;;
         *) echo "Unknown golang version $1"; exit 1;
     esac