diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 37c40cb2..e301510b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -19,7 +19,7 @@ jobs:
   macos:
     name: Apple Other
     # visionOS requires Xcode 15.2+, which is only available on the arm64 runners.
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
       - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@nightly
@@ -32,7 +32,7 @@ jobs:
       - run: cargo test --no-run --target=aarch64-apple-tvos -Zbuild-std --features=std
       - run: cargo test --no-run --target=aarch64-apple-watchos -Zbuild-std --features=std
       # visionOS requires Xcode 15.2+, GitHub Actions defaults to an older version.
-      - run: sudo xcode-select -switch /Applications/Xcode_15.2.app
+      - run: sudo xcode-select -switch /Applications/Xcode_16.app
       # std is broken on visionOS right now
       #- run: cargo test --no-run --target=aarch64-apple-visionos -Zbuild-std --features=std
 
diff --git a/.github/workflows/nopanic.yaml b/.github/workflows/nopanic.yaml
index 54f794d3..59816c99 100644
--- a/.github/workflows/nopanic.yaml
+++ b/.github/workflows/nopanic.yaml
@@ -117,7 +117,7 @@ jobs:
 
   macos:
     name: macOS
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
       - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@master
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 0125ea00..a1d4bfc9 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -27,7 +27,7 @@ jobs:
         # Only Test macOS on stable to reduce macOS CI jobs
         include:
           # aarch64-apple-darwin.
-          - os: macos-14
+          - os: macos-15
             toolchain: stable
     steps:
       - uses: actions/checkout@v7
@@ -101,7 +101,7 @@ jobs:
 
   ios:
     name: iOS Simulator
-    runs-on: macos-14
+    runs-on: macos-15
     steps:
       - uses: actions/checkout@v7
       - uses: dtolnay/rust-toolchain@master
@@ -110,7 +110,7 @@ jobs:
           targets: aarch64-apple-ios-sim
       - name: Install precompiled cargo-dinghy
         run: |
-          VERSION=0.8.1
+          VERSION=0.8.6
           URL="https://github.com/sonos/dinghy/releases/download/${VERSION}/cargo-dinghy-macos-${VERSION}.tgz"
           wget -O - $URL | tar -xz --strip-components=1 -C ~/.cargo/bin
       - name: Check cargo-dinghy version.