diff --git a/ports/argparse/portfile.cmake b/ports/argparse/portfile.cmake
index 51908fbb81..d9a554e9b3 100644
--- a/ports/argparse/portfile.cmake
+++ b/ports/argparse/portfile.cmake
@@ -3,8 +3,8 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO p-ranav/argparse
-    REF 997da9255618311d1fcb0135ce86022729d1f1cb # v2.9
-    SHA512 241e6a1ec76133b7ad4ab3984b1b4e08129f3dac80fc26a0010c9450ab83131ec9e2472844eba30265f2a6f1e94c7b7c07175f11a22553bd61a099b1bb148ef7
+    REF "v${VERSION}"
+    SHA512 a7ed879eb3f71868cd84e513c0db63c4fecff1c9f0b34d6cfbe85d2439e83b80e97f713b497259c9775c9c7c1f639a08b73080045c51756de15e3d8c18b97116
     HEAD_REF master
 )
 
diff --git a/ports/argparse/vcpkg.json b/ports/argparse/vcpkg.json
index 458c0a98c7..c9db0f71ef 100644
--- a/ports/argparse/vcpkg.json
+++ b/ports/argparse/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "argparse",
-  "version": "2.9",
+  "version": "3.0",
   "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 3f5371922e..ee0688713c 100644
--- a/versions/a-/argparse.json
+++ b/versions/a-/argparse.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "b8e0c44d4dfe3359b308711daac1e201dc4f8a21",
+      "version": "3.0",
+      "port-version": 0
+    },
     {
       "git-tree": "007156cde2fbc16b990f1a8cd0a29664873a923c",
       "version": "2.9",
diff --git a/versions/baseline.json b/versions/baseline.json
index 3941b0227d..b8c4eeaa55 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -201,7 +201,7 @@
       "port-version": 1
     },
     "argparse": {
-      "baseline": "2.9",
+      "baseline": "3.0",
       "port-version": 0
     },
     "args": {