diff --git a/ports/ms-gsl/portfile.cmake b/ports/ms-gsl/portfile.cmake
index 45e25a5eb1..48d2155b61 100644
--- a/ports/ms-gsl/portfile.cmake
+++ b/ports/ms-gsl/portfile.cmake
@@ -3,7 +3,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO Microsoft/GSL
     REF v${VERSION}
-    SHA512 c613937d225a72cd6fb66d68019ffe70bb16e99a8b9c13664dbaebf3c5bfde4888b2299174b3d668cb234f74821e20d9de3fa19febdee8fb733cb30a50089cd4
+    SHA512 3b9eb1c670dadc5f14e2ffedc225a8b60164853d3f9099d37d03ec4a6c2d88c6184ff16f930395b047248cd92d0034c93fb42aa73472b5dced8d8d63eace8223
     HEAD_REF main
 )
 
diff --git a/ports/ms-gsl/vcpkg.json b/ports/ms-gsl/vcpkg.json
index 3e1559978d..c8896bd30c 100644
--- a/ports/ms-gsl/vcpkg.json
+++ b/ports/ms-gsl/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "ms-gsl",
-  "version": "4.2.1",
+  "version": "4.2.2",
   "description": "Microsoft implementation of the Guidelines Support Library",
   "homepage": "https://github.com/Microsoft/GSL",
   "license": "MIT",
diff --git a/versions/baseline.json b/versions/baseline.json
index 020801014c..2266ec1131 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -6721,7 +6721,7 @@
       "port-version": 0
     },
     "ms-gsl": {
-      "baseline": "4.2.1",
+      "baseline": "4.2.2",
       "port-version": 0
     },
     "ms-ifc-sdk": {
diff --git a/versions/m-/ms-gsl.json b/versions/m-/ms-gsl.json
index b9e7ed129b..7433ba2456 100644
--- a/versions/m-/ms-gsl.json
+++ b/versions/m-/ms-gsl.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "a216325a37736e0ea3bde97ab5cbc9e140c48d1b",
+      "version": "4.2.2",
+      "port-version": 0
+    },
     {
       "git-tree": "e9510724f09e4a75dca6d9389eff1e12fb6bef6c",
       "version": "4.2.1",