diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 88e3432..0dd5364 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -215,9 +215,9 @@
 
     result.extend([
           dict(
-              name="OpenSSL 1.1.1c",
-              url="https://www.openssl.org/source/openssl-1.1.1c.tar.gz",
-              checksum='15e21da6efe8aa0e0768ffd8cd37a5f6',
+              name="OpenSSL 1.1.1d",
+              url="https://www.openssl.org/source/openssl-1.1.1d.tar.gz",
+              checksum='3be209000dbc7e1b95bcdf47980a3baa',
               buildrecipe=build_universal_openssl,
               configure=None,
               install=None,