diff --git a/ports/aurora-au/fix-usage.patch b/ports/aurora-au/fix-usage.patch
deleted file mode 100644
index 05655a9879306d..00000000000000
--- a/ports/aurora-au/fix-usage.patch
+++ /dev/null
@@ -1,27 +0,0 @@
-diff --git a/au/code/au/CMakeLists.txt b/au/code/au/CMakeLists.txt
-index edb965c..7c518bf 100644
---- a/au/code/au/CMakeLists.txt
-+++ b/au/code/au/CMakeLists.txt
-@@ -39,6 +39,7 @@ header_only_library(
-     quantity.hh
-     quantity_point.hh
-     rep.hh
-+    static_cast_checkers.hh
-     unit_of_measure.hh
-     unit_symbol.hh
-     wrapper_operations.hh
-@@ -465,6 +466,14 @@ gtest_based_test(
-     au
- )
- 
-+gtest_based_test(
-+  NAME static_cast_checkers_test
-+  SRCS
-+    static_cast_checkers_test.cc
-+  DEPS
-+    au
-+)
-+
- gtest_based_test(
-   NAME stdx_test
-   SRCS
diff --git a/ports/aurora-au/portfile.cmake b/ports/aurora-au/portfile.cmake
index d1a40500d41e48..07d9283a366787 100644
--- a/ports/aurora-au/portfile.cmake
+++ b/ports/aurora-au/portfile.cmake
@@ -4,10 +4,8 @@ vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO aurora-opensource/au
     REF "${VERSION}"
-    SHA512 7e78ac2502037ad87d3171c366c8c91b030678af26d6db75cf12384faa077e40b159b570ddd774b76bc7ca34d74d1898958b6d6b33d56a8eb5ca1f96c1a9ed66
+    SHA512 85b90924f82a123000ecc3c9a1f44f31d6f1a7f3664968abc27f4fbdc6712b7bc9a8a30428b9422529fed7fe269a13c57e0dad8483658530dcbfa0c6b15daa6c
     HEAD_REF main
-    PATCHES
-        fix-usage.patch
 )
 
 vcpkg_cmake_configure(
diff --git a/ports/aurora-au/vcpkg.json b/ports/aurora-au/vcpkg.json
index ea4edb496a930a..3d36c4d6118931 100644
--- a/ports/aurora-au/vcpkg.json
+++ b/ports/aurora-au/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
   "name": "aurora-au",
-  "version-semver": "0.4.0",
+  "version-semver": "0.4.1",
   "description": "A C++14-compatible physical units library with no dependencies and a single-file delivery option. Emphasis on safety, accessibility, performance, and developer experience.",
   "homepage": "https://github.com/aurora-opensource/au",
   "documentation": "https://aurora-opensource.github.io/au/main/",
diff --git a/versions/a-/aurora-au.json b/versions/a-/aurora-au.json
index 6d26a82cd4265b..11538a2c7fa01e 100644
--- a/versions/a-/aurora-au.json
+++ b/versions/a-/aurora-au.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "91255ce3759e484bab4763b24ea50de15c0ca560",
+      "version-semver": "0.4.1",
+      "port-version": 0
+    },
     {
       "git-tree": "291af3f0c1c91f4c93c000063b601e8a2f0636bd",
       "version-semver": "0.4.0",
diff --git a/versions/baseline.json b/versions/baseline.json
index acca7aec0b5d28..297602f557a0e2 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -357,7 +357,7 @@
       "port-version": 2
     },
     "aurora-au": {
-      "baseline": "0.4.0",
+      "baseline": "0.4.1",
       "port-version": 0
     },
     "autobahn": {