diff --git a/Dockerfile b/Dockerfile
index 1bdee3f..43ca944 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,17 +1,17 @@
-ARG GO_VERSION=1.12.12
+ARG GO_VERSION=1.13.0
 
 # OS-X SDK parameters
 # NOTE: when changing version here, make sure to also change OSX_CODENAME below to match
-ARG OSX_SDK=MacOSX10.10.sdk
-ARG OSX_SDK_SUM=631b4144c6bf75bf7a4d480d685a9b5bda10ee8d03dbf0db829391e2ef858789
+ARG OSX_SDK=MacOSX10.11.sdk
+ARG OSX_SDK_SUM=98cdd56e0f6c1f9e1af25e11dd93d2e7d306a4aa50430a2bc6bc083ac67efbb8
 
-# OSX-cross parameters. Go 1.11 requires OSX >= 10.10
-ARG OSX_VERSION_MIN=10.10
+# OSX-cross parameters. Go 1.13 requires OSX >= 10.11
+ARG OSX_VERSION_MIN=10.11
 ARG OSX_CROSS_COMMIT=a9317c18a3a457ca0a657f08cc4d0d43c6cf8953
 
 # Libtool parameters
 ARG LIBTOOL_VERSION=2.4.6
-ARG OSX_CODENAME=yosemite
+ARG OSX_CODENAME=el_capitan
 
 FROM golang:${GO_VERSION}-buster AS base
 ARG APT_MIRROR
@@ -22,7 +22,9 @@ ENV OSX_CROSS_PATH=/osxcross
 FROM base AS osx-sdk
 ARG OSX_SDK
 ARG OSX_SDK_SUM
-ADD https://s3.dockerproject.org/darwin/v2/${OSX_SDK}.tar.xz "${OSX_CROSS_PATH}/tarballs/${OSX_SDK}.tar.xz"
+# ADD https://s3.dockerproject.org/darwin/v2/${OSX_SDK}.tar.xz "${OSX_CROSS_PATH}/tarballs/${OSX_SDK}.tar.xz"
+# FIXME: upload to s3.dockerproject.org
+ADD https://github.com/ndeloof/golang-cross/raw/113fix/${OSX_SDK}.tar.xz "${OSX_CROSS_PATH}/tarballs/${OSX_SDK}.tar.xz"
 RUN echo "${OSX_SDK_SUM}"  "${OSX_CROSS_PATH}/tarballs/${OSX_SDK}.tar.xz" | sha256sum -c -
 
 FROM base AS osx-cross-base