diff --git a/.github/workflows/build-reuse-darwin-framework.yml b/.github/workflows/build-reuse-darwin-framework.yml
index 86891dab94..10816ee3f8 100644
--- a/.github/workflows/build-reuse-darwin-framework.yml
+++ b/.github/workflows/build-reuse-darwin-framework.yml
@@ -42,7 +42,7 @@ jobs:
       ref: ${{ inputs.ref }}
       config: ${{ inputs.config }}
       plat: ${{ matrix.plat }}
-      os: macos-12
+      os: macos-13
       arch: ${{ matrix.arch }}
       tls: ${{ inputs.tls }}
       static: ${{ inputs.static }}
@@ -50,7 +50,7 @@ jobs:
   build-darwin-universal:
     name: Build Universal Binaries 
     needs: [build-darwin]
-    runs-on: macos-12
+    runs-on: macos-13
     steps:
     - name: Checkout repository
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
@@ -60,12 +60,12 @@ jobs:
     - name: Download Build Artifacts (x64)
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
       with:
-        name: ${{ inputs.config }}-macos-macos-12-x64-${{ inputs.tls }}${{ inputs.static }}
+        name: ${{ inputs.config }}-macos-macos-13-x64-${{ inputs.tls }}${{ inputs.static }}
         path: artifacts
     - name: Download Build Artifacts (arm64)
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
       with:
-        name: ${{ inputs.config }}-macos-macos-12-arm64-${{ inputs.tls }}${{ inputs.static }}
+        name: ${{ inputs.config }}-macos-macos-13-arm64-${{ inputs.tls }}${{ inputs.static }}
         path: artifacts
     - name: Build Package
       shell: pwsh
@@ -73,7 +73,7 @@ jobs:
     - name: Upload build artifacts
       uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b
       with:
-        name: ${{ inputs.config }}-macos-macos-12-universal-${{ inputs.tls }}${{ inputs.static }}
+        name: ${{ inputs.config }}-macos-macos-13-universal-${{ inputs.tls }}${{ inputs.static }}
         path: artifacts
 
   build-darwin-framework:
@@ -87,7 +87,7 @@ jobs:
           { plat: "ios", arch: "arm64" },
           { plat: "macos", arch: "universal" },
         ]
-    runs-on: macos-12
+    runs-on: macos-13
     steps:
     - name: Checkout repository
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
@@ -97,7 +97,7 @@ jobs:
     - name: Download Build Artifacts (x64)
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
       with:
-        name: ${{ inputs.config }}-${{ matrix.vec.plat }}-macos-12-${{ matrix.vec.arch }}-${{ inputs.tls }}${{ inputs.static }}
+        name: ${{ inputs.config }}-${{ matrix.vec.plat }}-macos-13-${{ matrix.vec.arch }}-${{ inputs.tls }}${{ inputs.static }}
         path: artifacts
     - name: Build Framework
       shell: pwsh
@@ -105,13 +105,13 @@ jobs:
     - name: Upload build artifacts
       uses: actions/upload-artifact@0b2256b8c012f0828dc542b3febcab082c67f72b
       with:
-        name: Framework-${{ inputs.config }}-${{ matrix.vec.plat }}-macos-12-${{ matrix.vec.arch }}-${{ inputs.tls }}${{ inputs.static }}
+        name: Framework-${{ inputs.config }}-${{ matrix.vec.plat }}-macos-13-${{ matrix.vec.arch }}-${{ inputs.tls }}${{ inputs.static }}
         path: artifacts
 
   build-darwin-xcframework:
     name: Build Darwin XCFramework
     needs: [build-darwin-framework]
-    runs-on: macos-12
+    runs-on: macos-13
     steps:
     - name: Checkout repository
       uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332
@@ -121,17 +121,17 @@ jobs:
     - name: Download Build Artifacts (iOS x64)
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
       with:
-        name: Framework-${{ inputs.config }}-ios-macos-12-x64-openssl
+        name: Framework-${{ inputs.config }}-ios-macos-13-x64-openssl
         path: artifacts
     - name: Download Build Artifacts (iOS arm64)
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
       with:
-        name: Framework-${{ inputs.config }}-ios-macos-12-arm64-openssl
+        name: Framework-${{ inputs.config }}-ios-macos-13-arm64-openssl
         path: artifacts
     - name: Download Build Artifacts (MacOS Universal)
       uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
       with:
-        name: Framework-${{ inputs.config }}-macos-macos-12-universal-openssl
+        name: Framework-${{ inputs.config }}-macos-macos-13-universal-openssl
         path: artifacts
     - name: Build XCFramework
       shell: pwsh
diff --git a/.github/workflows/build-reuse-unix.yml b/.github/workflows/build-reuse-unix.yml
index 8aab91ceb8..81b804e8e9 100644
--- a/.github/workflows/build-reuse-unix.yml
+++ b/.github/workflows/build-reuse-unix.yml
@@ -33,7 +33,7 @@ on:
         #   - ubuntu-20.04
         #   - ubuntu-22.04
         #   - ubuntu-24.04
-        #   - macos-12
+        #   - macos-13
       arch:
         required: false
         default: 'x64'
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 0610d695f3..c173b18eeb 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -186,7 +186,7 @@ jobs:
       matrix:
         config: ['Debug', 'Release']
         plat: [macos, ios]
-        os: ['macos-12']
+        os: ['macos-13']
         arch: [x64, arm64]
         tls: [openssl, openssl3]
         static: ['', '-Static']
diff --git a/.github/workflows/cargo.yml b/.github/workflows/cargo.yml
index 251c915a4f..b48e3f1942 100644
--- a/.github/workflows/cargo.yml
+++ b/.github/workflows/cargo.yml
@@ -16,7 +16,7 @@ jobs:
   cargo:
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, windows-latest, macos-latest, macos-latest-xlarge]
     runs-on: ${{ matrix.os }}
     name: Cargo
     steps:
diff --git a/.github/workflows/dotnet-test.yml b/.github/workflows/dotnet-test.yml
index 3bde02a0c4..89f33c2dde 100644
--- a/.github/workflows/dotnet-test.yml
+++ b/.github/workflows/dotnet-test.yml
@@ -76,7 +76,7 @@ jobs:
           { plat: "linux", os: "ubuntu-20.04", arch: "x64", tls: "openssl" },
           { plat: "linux", os: "ubuntu-22.04", arch: "x64", tls: "openssl3" },
           { plat: "linux", os: "ubuntu-24.04", arch: "x64", tls: "openssl3", xdp: "-UseXdp" },
-          { plat: "macos", os: "macos-12", arch: "universal", tls: "openssl" },
+          { plat: "macos", os: "macos-13", arch: "universal", tls: "openssl" },
         ]
     runs-on: ${{ matrix.vec.os }}
     steps:
diff --git a/.github/workflows/stress.yml b/.github/workflows/stress.yml
index 7b4d71e6f1..4df63a18a5 100644
--- a/.github/workflows/stress.yml
+++ b/.github/workflows/stress.yml
@@ -47,8 +47,8 @@ jobs:
       fail-fast: false
       matrix:
         vec: [
-          { config: "Debug", plat: "macos", os: "macos-12", arch: "x64", tls: "openssl", build: "-Test" },
-          { config: "Debug", plat: "macos", os: "macos-12", arch: "x64", tls: "openssl3", build: "-Test" },
+          { config: "Debug", plat: "macos", os: "macos-13", arch: "x64", tls: "openssl", build: "-Test" },
+          { config: "Debug", plat: "macos", os: "macos-13", arch: "x64", tls: "openssl3", build: "-Test" },
           { config: "Debug", plat: "linux", os: "ubuntu-20.04", arch: "x64", tls: "openssl", sanitize: "-Sanitize", build: "-Test" },
           { config: "Debug", plat: "linux", os: "ubuntu-20.04", arch: "x64", tls: "openssl3", sanitize: "-Sanitize", build: "-Test" },
           { config: "Debug", plat: "linux", os: "ubuntu-22.04", arch: "x64", tls: "openssl3", sanitize: "-Sanitize", build: "-Test" },
@@ -79,8 +79,8 @@ jobs:
           { config: "Debug", plat: "linux", os: "ubuntu-22.04", arch: "x64", tls: "openssl3", sanitize: "-Sanitize", build: "-Test"  },
           { config: "Debug", plat: "linux", os: "ubuntu-24.04", arch: "x64", tls: "openssl3", sanitize: "-Sanitize", build: "-Test"  },
           { config: "Debug", plat: "linux", os: "ubuntu-24.04", arch: "x64", tls: "openssl3", build: "-Test", xdp: "-UseXdp"  },
-          { config: "Debug", plat: "macos", os: "macos-12", arch: "x64", tls: "openssl", build: "-Test" },
-          { config: "Debug", plat: "macos", os: "macos-12", arch: "x64", tls: "openssl3", build: "-Test" },
+          { config: "Debug", plat: "macos", os: "macos-13", arch: "x64", tls: "openssl", build: "-Test" },
+          { config: "Debug", plat: "macos", os: "macos-13", arch: "x64", tls: "openssl3", build: "-Test" },
           { config: "Debug", plat: "windows", os: "windows-2022", arch: "x64", tls: "schannel", sanitize: "-Sanitize", build: "-Test" },
           { config: "Debug", plat: "windows", os: "windows-2022", arch: "x64", tls: "schannel", xdp: "-UseXdp", sanitize: "-Sanitize", build: "-Test" },
           { config: "Debug", plat: "windows", os: "windows-2022", arch: "x64", tls: "openssl", build: "-Test" },
diff --git a/scripts/build.ps1 b/scripts/build.ps1
index 7b676862bb..1869011ce5 100644
--- a/scripts/build.ps1
+++ b/scripts/build.ps1
@@ -386,8 +386,8 @@ function CMake-Generate {
     }
     if ($Platform -eq "macos") {
         switch ($Arch) {
-            "x64"   { $Arguments += " -DCMAKE_OSX_ARCHITECTURES=x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=""12"""}
-            "arm64" { $Arguments += " -DCMAKE_OSX_ARCHITECTURES=arm64 -DCMAKE_OSX_DEPLOYMENT_TARGET=""11.0"""}
+            "x64"   { $Arguments += " -DCMAKE_OSX_ARCHITECTURES=x86_64 -DCMAKE_OSX_DEPLOYMENT_TARGET=""13"""}
+            "arm64" { $Arguments += " -DCMAKE_OSX_ARCHITECTURES=arm64 -DCMAKE_OSX_DEPLOYMENT_TARGET=""13"""}
         }
     }
     if ($Platform -eq "linux") {
diff --git a/scripts/build.rs b/scripts/build.rs
index 355d263d65..2881cb0001 100644
--- a/scripts/build.rs
+++ b/scripts/build.rs
@@ -21,13 +21,17 @@ fn main() {
         .define("QUIC_TLS", "openssl")
         .define("QUIC_OUTPUT_DIR", "../lib");
 
+    // macos-latest's cargo automatically specify --target=${ARCH}-apple-macosx14.5
+    // which conflicts with -mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}.
+    // Different value than 14.5 will cause the build to fail.
+    // This hardcoded 14.5 is workaround for this issue.
     match target.as_str() {
         "x86_64-apple-darwin" => config
             .define("CMAKE_OSX_ARCHITECTURES", "x86_64")
-            .define("CMAKE_OSX_DEPLOYMENT_TARGET", "10.15"),
+            .define("CMAKE_OSX_DEPLOYMENT_TARGET", "14.5"),
         "aarch64-apple-darwin" => config
             .define("CMAKE_OSX_ARCHITECTURES", "arm64")
-            .define("CMAKE_OSX_DEPLOYMENT_TARGET", "11.0"),
+            .define("CMAKE_OSX_DEPLOYMENT_TARGET", "14.5"),
         _ => &mut config
     };