diff --git a/doc/gitian-building.md b/doc/gitian-building.md
--- a/doc/gitian-building.md
+++ b/doc/gitian-building.md
@@ -54,10 +54,10 @@
 
 ```bash
 cd bitcoin-abc/contrib/gitian-builder
-curl -LO https://storage.googleapis.com/27cd7b2a42a430926cc621acdc3bda72a8ed2b0efc080e3/MacOSX10.14.sdk.tar.gz
-echo "2322086a96349db832abbcadea493b79db843553a2e604163238d99fa058a286 MacOSX10.14.sdk.tar.gz" | sha256sum -c
+curl -LO https://storage.googleapis.com/27cd7b2a42a430926cc621acdc3bda72a8ed2b0efc080e3/Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz
+echo "a1b8af4c4d82d519dd5aff2135fe56184fa758c30e310b5fb4bfc8d9d3b45d8a Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz" | sha256sum -c
 mkdir -p inputs
-mv MacOSX10.14.sdk.tar.gz inputs
+mv Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz inputs
 ```
 
 Alternatively, you can skip the macOS build by adding `--os=lw` below.
diff --git a/doc/gitian-building/gitian-building-mac-os-sdk.md b/doc/gitian-building/gitian-building-mac-os-sdk.md
--- a/doc/gitian-building/gitian-building-mac-os-sdk.md
+++ b/doc/gitian-building/gitian-building-mac-os-sdk.md
@@ -1,7 +1,7 @@
 Gitian building Mac OS SDK
 ==========================
 
-On the host machine, register for a free Apple [developer account](https://developer.apple.com/register/), then download the SDK [here](https://download.developer.apple.com/Developer_Tools/Xcode_10.2.1/Xcode_10.2.1.xip).
+On the host machine, register for a free Apple [developer account](https://developer.apple.com/register/), then download the SDK [here](https://download.developer.apple.com/Developer_Tools/Xcode_11.3.1/Xcode_11.3.1.xip).
 
 Extract the SDK
 ---------------
@@ -13,15 +13,15 @@
 Copy it to the Gitian VM and clean up, e.g.:
 
 ```bash
-scp MacOSX10.14.sdk.tar.gz gitian:
-rm MacOSX10.14.sdk.tar.gz
+scp Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz gitian:
+rm Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz
 ```
 
 Login to the VM and:
 
 ```bash
 mkdir -p gitian-builder/inputs
-mv MacOSX10.14.sdk.tar.gz gitian-builder/inputs
+mv Xcode-11.3.1-11C505-extracted-SDK-with-libcxx-headers.tar.gz gitian-builder/inputs
 ```
 
 Troubleshooting