diff --git a/ports/argparse/portfile.cmake b/ports/argparse/portfile.cmake
index d9a554e9b3..385edb79aa 100644
--- a/ports/argparse/portfile.cmake
+++ b/ports/argparse/portfile.cmake
@@ -4,7 +4,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO p-ranav/argparse
     REF "v${VERSION}"
-    SHA512 a7ed879eb3f71868cd84e513c0db63c4fecff1c9f0b34d6cfbe85d2439e83b80e97f713b497259c9775c9c7c1f639a08b73080045c51756de15e3d8c18b97116
+    SHA512 31e03b7de44e091614c1680e76988e0f7f5bdc6baf0262ed0583c6311d6d0611b7e30fa73b4522fd99d8ea81e74e5a74a91888135a1352d9ab08bf4a5467d32d
     HEAD_REF master
 )
 
diff --git a/ports/argparse/vcpkg.json b/ports/argparse/vcpkg.json
index c9db0f71ef..e7e5ec3dbe 100644
--- a/ports/argparse/vcpkg.json
+++ b/ports/argparse/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "argparse",
-  "version": "3.0",
+  "version": "3.1",
   "description": "Argument parser for modern C++",
   "homepage": "https://github.com/p-ranav/argparse",
   "license": "MIT",
diff --git a/versions/a-/argparse.json b/versions/a-/argparse.json
index ee0688713c..eb6331a284 100644
--- a/versions/a-/argparse.json
+++ b/versions/a-/argparse.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "d0e494fd0f114573521975bd1dbf1eddcb27e465",
+      "version": "3.1",
+      "port-version": 0
+    },
     {
       "git-tree": "b8e0c44d4dfe3359b308711daac1e201dc4f8a21",
       "version": "3.0",
diff --git a/versions/baseline.json b/versions/baseline.json
index 2f53a898ab..2da1557114 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -205,7 +205,7 @@
       "port-version": 1
     },
     "argparse": {
-      "baseline": "3.0",
+      "baseline": "3.1",
       "port-version": 0
     },
     "args": {