diff --git a/ports/scnlib/portfile.cmake b/ports/scnlib/portfile.cmake
index 56c9610b20..0b15af4f83 100644
--- a/ports/scnlib/portfile.cmake
+++ b/ports/scnlib/portfile.cmake
@@ -4,7 +4,7 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO eliaskosunen/scnlib
     REF "v${VERSION}"
-    SHA512 76f3196d6bd01a349c69bf1863cc0dc521a95b84ef25b841198acbef99e295b53c1c82c745a7498b9a86a6fd4cc0c395abcb02fdf18b1d7c9152321ab195945b
+    SHA512 db14d71da3c1ecb849f00ac1e334f39c532592230e950aa1009ff00ba56670cb71e33ca457fd4ac66595ff43f0dca0e42d45f672848b9cde3cba80f19ef8693f
     HEAD_REF master
 )
 
diff --git a/ports/scnlib/vcpkg.json b/ports/scnlib/vcpkg.json
index 988e53f36e..ec304e0ab5 100644
--- a/ports/scnlib/vcpkg.json
+++ b/ports/scnlib/vcpkg.json
@@ -1,6 +1,6 @@
 {
   "name": "scnlib",
-  "version": "3.0.1",
+  "version": "4.0.1",
   "description": "scnlib is a modern C++ library for replacing scanf and std::istream",
   "homepage": "https://scnlib.dev/",
   "license": "Apache-2.0",
diff --git a/versions/baseline.json b/versions/baseline.json
index cbac0e5505..06a8038c1f 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -8133,7 +8133,7 @@
       "port-version": 0
     },
     "scnlib": {
-      "baseline": "3.0.1",
+      "baseline": "4.0.1",
       "port-version": 0
     },
     "scope-guard": {
diff --git a/versions/s-/scnlib.json b/versions/s-/scnlib.json
index dc1e776c2b..981f68aae8 100644
--- a/versions/s-/scnlib.json
+++ b/versions/s-/scnlib.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "c4f32fa5eff83c4abe03aa721dcc57c3fd3f0a02",
+      "version": "4.0.1",
+      "port-version": 0
+    },
     {
       "git-tree": "cbbd6d359bd0838808caa2ffd0982f87c8587fab",
       "version": "3.0.1",