diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index ce8d40aa7c..875960c790 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -290,6 +290,8 @@ jobs:
   build-macos:
     name: build-macos-${{ matrix.arch }}
     runs-on: ${{ (matrix.arch == 'arm64' && 'macos-14') || 'macos-13' }}
+    env:
+      VCPKG_BINARY_SOURCES: "clear;x-gha,readwrite"
 
     strategy:
       fail-fast: false
@@ -312,27 +314,17 @@ jobs:
         run: |
           brew install automake autoconf-archive cmake libtool ninja
 
-      # libcxx build is not working with python >= 3.12
-      - name: Do not use preinstalled python >= 3.12
-        run: |
-          brew uninstall --ignore-dependencies python@3.12
-          [ -e /Library/Frameworks/Python.framework ] && \
-            sudo mv /Library/Frameworks/Python.framework /Library/Frameworks/Python.framework.dont-look-at-this
-          brew install python@3.11
-          ln -s "$(brew --prefix python@3.11)/bin/python3" "$(brew --prefix python@3.11)/bin/python"
-
-      - name: Cache - vcpkg
-        uses: actions/cache@v4
+      - name: Export GitHub Actions cache environment variables
+        uses: actions/github-script@v7
         with:
-          key: ${{ runner.os }}-vcpkg-0
-          path: |
-            $HOME/.cache/vcpkg/archives
+          script: |
+            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
+            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
 
       - name: Build
         run: |
           export LIBTOOLIZE=glibtoolize
           export LIBTOOL=glibtool
-          export PATH="$(brew --prefix python@3.11)/bin:$PATH"
 
           ./autogen.sh --with-builtin-tommath --with-builtin-tomcrypt
           make -j4
diff --git a/vcpkg-custom/registry/ports/libcxx/13.0.1_0/build.sh.in b/vcpkg-custom/registry/ports/libcxx/19.1.1_0/build.sh.in
similarity index 68%
rename from vcpkg-custom/registry/ports/libcxx/13.0.1_0/build.sh.in
rename to vcpkg-custom/registry/ports/libcxx/19.1.1_0/build.sh.in
index 5c3af6a170..3646de9e32 100755
--- a/vcpkg-custom/registry/ports/libcxx/13.0.1_0/build.sh.in
+++ b/vcpkg-custom/registry/ports/libcxx/19.1.1_0/build.sh.in
@@ -5,15 +5,16 @@ set -e
 SOURCE_PATH=@SOURCE_PATH@
 INSTALL_PREFIX=@INSTALL_PREFIX@
 
-export MACOSX_DEPLOYMENT_TARGET=10.9
+export MACOSX_DEPLOYMENT_TARGET=12.7
 
 cmake -G Ninja -S $SOURCE_PATH/llvm \
 	-DCMAKE_INSTALL_PREFIX=$INSTALL_PREFIX \
-	-DLLVM_ENABLE_PROJECTS="libcxx;libcxxabi" \
+	-DLLVM_ENABLE_PROJECTS="clang" \
+	-DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
 	-DCMAKE_BUILD_TYPE=Release \
 	-DLIBCXX_ENABLE_SHARED=false \
 	-DLIBCXX_ENABLE_STATIC_ABI_LIBRARY=true
 
-ninja cxx cxxabi
+ninja runtimes
 
 ninja install-cxx install-cxxabi
diff --git a/vcpkg-custom/registry/ports/libcxx/13.0.1_0/portfile.cmake b/vcpkg-custom/registry/ports/libcxx/19.1.1_0/portfile.cmake
similarity index 71%
rename from vcpkg-custom/registry/ports/libcxx/13.0.1_0/portfile.cmake
rename to vcpkg-custom/registry/ports/libcxx/19.1.1_0/portfile.cmake
index 28632efede..1c1a320d0f 100644
--- a/vcpkg-custom/registry/ports/libcxx/13.0.1_0/portfile.cmake
+++ b/vcpkg-custom/registry/ports/libcxx/19.1.1_0/portfile.cmake
@@ -1,9 +1,9 @@
 vcpkg_from_github(
     OUT_SOURCE_PATH SOURCE_PATH
     REPO llvm/llvm-project
-    REF 75e33f71c2dae584b13a7d1186ae0a038ba98838
-    HEAD_REF llvmorg-13.0.1
-    SHA512 8bd80efe88160f615a9dc6fbcdab693d1459ca483410cf990f25169079e46726429f24ad042d287bfcfef8fd54a8a7264a67a710edaa24ebbf1e815a62b1f812
+    REF d401987fe349a87c53fe25829215b080b70c0c1a
+    HEAD_REF llvmorg-19.1.1
+    SHA512 adbcd783b35c635d6a2e3a97a9a183645645f539bb1771062b69e3b5a8f92250882124c71d3b57b0c206e2efb54415c67fed3e46fb023adff4a2fe17d190b250
 )
 
 file(REMOVE_RECURSE "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-dbg" "${CURRENT_BUILDTREES_DIR}/${TARGET_TRIPLET}-rel")
diff --git a/vcpkg-custom/registry/ports/libcxx/13.0.1_0/vcpkg.json b/vcpkg-custom/registry/ports/libcxx/19.1.1_0/vcpkg.json
similarity index 64%
rename from vcpkg-custom/registry/ports/libcxx/13.0.1_0/vcpkg.json
rename to vcpkg-custom/registry/ports/libcxx/19.1.1_0/vcpkg.json
index 3045ceaeff..b35a00970e 100644
--- a/vcpkg-custom/registry/ports/libcxx/13.0.1_0/vcpkg.json
+++ b/vcpkg-custom/registry/ports/libcxx/19.1.1_0/vcpkg.json
@@ -1,5 +1,5 @@
 {
   "name": "libcxx",
-  "version-string": "13.0.1",
+  "version-string": "19.1.1",
   "description": "LLVM libc++"
 }
diff --git a/vcpkg-custom/registry/versions/baseline.json b/vcpkg-custom/registry/versions/baseline.json
index 2ef56176b8..3940e75333 100644
--- a/vcpkg-custom/registry/versions/baseline.json
+++ b/vcpkg-custom/registry/versions/baseline.json
@@ -1,7 +1,7 @@
 {
   "2023-08-23": {
     "libcxx": {
-      "baseline": "13.0.1"
+      "baseline": "19.1.1"
     }
   }
 }
diff --git a/vcpkg-custom/registry/versions/l-/libcxx.json b/vcpkg-custom/registry/versions/l-/libcxx.json
index 803468b733..92d768cdfa 100644
--- a/vcpkg-custom/registry/versions/l-/libcxx.json
+++ b/vcpkg-custom/registry/versions/l-/libcxx.json
@@ -1,8 +1,8 @@
 {
   "versions": [
     {
-      "version": "13.0.1",
-      "path": "$/ports/libcxx/13.0.1_0"
+      "version": "19.1.1",
+      "path": "$/ports/libcxx/19.1.1_0"
     }
   ]
 }
diff --git a/vcpkg.json b/vcpkg.json
index a395f577e1..dd4cf250d7 100644
--- a/vcpkg.json
+++ b/vcpkg.json
@@ -12,7 +12,7 @@
     },
     {
       "name": "libcxx",
-      "version": "13.0.1"
+      "version": "19.1.1"
     }
   ]
 }