diff --git a/Mac/BuildScript/build-installer.py b/Mac/BuildScript/build-installer.py
index 8728289..7fe5512 100755
--- a/Mac/BuildScript/build-installer.py
+++ b/Mac/BuildScript/build-installer.py
@@ -237,9 +237,9 @@
 
         result.extend([
           dict(
-              name="OpenSSL 1.0.2a",
-              url="https://www.openssl.org/source/openssl-1.0.2a.tar.gz",
-              checksum='a06c547dac9044161a477211049f60ef',
+              name="OpenSSL 1.0.2c",
+              url="https://www.openssl.org/source/openssl-1.0.2c.tar.gz",
+              checksum='8c8d81a9ae7005276e486702edbcd4b6',
               patches=[
                   "openssl_sdk_makedepend.patch",
                    ],
diff --git a/Mac/BuildScript/openssl_sdk_makedepend.patch b/Mac/BuildScript/openssl_sdk_makedepend.patch
index 5903afd..74d7121 100644
--- a/Mac/BuildScript/openssl_sdk_makedepend.patch
+++ b/Mac/BuildScript/openssl_sdk_makedepend.patch
@@ -2,7 +2,7 @@
 # Parent  25a9af415e8c3faf591c360d5f0e361d049b2b43
 # openssl_sdk_makedepend.patch
 #
-# 	using openssl 1.0.2a
+# 	using openssl 1.0.2c
 #
 # - support building with an OS X SDK
 # - allow "make depend" to use compilers with names other than "gcc"
diff --git a/Misc/NEWS b/Misc/NEWS
index 95a1237..3d4694f 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -340,10 +340,8 @@
 - Issue #23445: pydebug builds now use "gcc -Og" where possible, to make
   the resulting executable faster.
 
-- Issue #23686: Update OS X 10.5 installer and Windows builds to use
-  OpenSSL 1.0.2a.
-
-- Issue #24432: Update Windows builds to use OpenSSL 1.0.2c.
+- Issue #24432: Update Windows builds and OS X 10.5 installer to use OpenSSL
+  1.0.2c.
 
 C API
 -----