diff --git a/README.md b/README.md
index 5f082f6..091ab7f 100644
--- a/README.md
+++ b/README.md
@@ -44,10 +44,10 @@ You must have GnuPG installed and on your path as `gpg`.
 Instructions on how to install required software on some OSes and prepare a gitian base environment can be found [here](https://github.com/devrandom/gitian-builder/blob/master/README.md).
 You should follow the described steps until you have completed the "Sanity-testing" section successfully. Be sure to use the "bionic" suite for your base image.
 
-If you want to build build executables for Mac you'll need to download MacOSX SDK 10.14.
-It is contained in the Xcode 10.3 distribution, which is available at https://developer.apple.com/xcode/resources/ under "Command Line Tools & Older Versions of Xcode". .
+If you want to build build executables for Mac you'll need to download MacOSX SDK 10.15.
+It is contained in the Xcode 11.1 distribution, which is available at https://developer.apple.com/xcode/resources/ under "Command Line Tools & Older Versions of Xcode". .
 After downloading Xcode, you can extract the SDK as described [here](https://github.com/tpoechtrager/osxcross#packaging-the-sdk).
-The resulting file `MacOSX10.14.sdk.tar.xz` must be put in the `vendor/gitian-builder/inputs` subdirectory.
+The resulting file `MacOSX10.15.sdk.tar.xz` must be put in the `vendor/gitian-builder/inputs` subdirectory.
 
 ### Example for Docker
 
diff --git a/descriptors/bitshares-core-osx.yml b/descriptors/bitshares-core-osx.yml
index 8d8c097..fe2b921 100644
--- a/descriptors/bitshares-core-osx.yml
+++ b/descriptors/bitshares-core-osx.yml
@@ -26,7 +26,7 @@ files:
 - openssl-1.1.1c.tar.gz
 - curl-7.65.0.tar.bz2
 - boost_1_69_0.tar.bz2
-- MacOSX10.14.sdk.tar.xz
+- MacOSX10.15.sdk.tar.xz
 - e0a171828a72a0d7ad4409489033536590008ebf.tar.gz
 script: |
   set -e -o pipefail
diff --git a/run-gitian b/run-gitian
index 9925231..0dd2811 100755
--- a/run-gitian
+++ b/run-gitian
@@ -59,8 +59,8 @@ _EOL_
             cat <<_EOL_
 https://github.com/tpoechtrager/osxcross/archive/e0a171828a72a0d7ad4409489033536590008ebf.tar.gz 7ef00c27b76745d4b44e13f291df60318588aa7b5d1788aeba5aca569ac7e989
 _EOL_
-            if [ ! -r inputs/MacOSX10.14.sdk.tar.xz ]; then
-                echo "Please download MacOSX10.14.sdk.tar.xz and place it in `pwd`/inputs." 1>&2
+            if [ ! -r inputs/MacOSX10.15.sdk.tar.xz ]; then
+                echo "Please download MacOSX10.15.sdk.tar.xz and place it in `pwd`/inputs." 1>&2
                 echo "Also be sure to read and understand Apple's licensing terms." 1>&2
                 exit 1
             fi