diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c87362903..fd26359aa 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -190,7 +190,7 @@ jobs:
 
   ui:
     name: Compiler UI
-    runs-on: macos-13
+    runs-on: ubuntu-latest
     needs:
     - fmt
     - lint
@@ -218,7 +218,7 @@ jobs:
         key: cargo-${{ github.job }}-${{ matrix.name }}-${{ hashFiles('**/Cargo.lock') }}
 
     - name: Run UI tests
-      run: cargo run --features=run --bin=test-ui
+      run: cargo run --features=run,gnustep-1-7 --bin=test-ui
 
     - name: Check diff
       if: ${{ always() }}
@@ -266,7 +266,7 @@ jobs:
 
   header-translator:
     name: Verify header translator output
-    runs-on: macos-15
+    runs-on: macos-15-xlarge
     needs:
     - fmt
     - lint
@@ -299,7 +299,7 @@ jobs:
     # This will take ~40 minutes
     if: ${{ github.head_ref == 'new-versions' || github.ref_name == 'ci-full' }}
     name: Check framework features
-    runs-on: macos-12
+    runs-on: macos-15-xlarge
     needs:
     - fmt
     - lint
@@ -322,8 +322,8 @@ jobs:
       run: cargo run --bin=check_framework_features
 
   test-macos:
-    name: Test macOS 12
-    runs-on: macos-12
+    name: Test macOS 15 Aarch64
+    runs-on: macos-15-xlarge
     needs:
     - fmt
     # Currently the slowest check, so let's get it started as soon as possible
@@ -355,7 +355,7 @@ jobs:
     # if: ${{ env.FULL }}
     if: ${{ github.head_ref == 'new-versions' || github.ref_name == 'ci-full' }}
     name: ${{ matrix.name }}
-    runs-on: ${{ matrix.os || 'macos-latest' }}
+    runs-on: ${{ matrix.os }}
     needs:
     - fmt
     - lint
@@ -366,53 +366,55 @@ jobs:
       fail-fast: true
       matrix:
         include:
-        - name: Test macOS 13
+        - name: Test macOS 12 x86_64
           target: x86_64-apple-darwin
-          os: macos-13
+          os: macos-12-large
           frameworks: MACOS_13
-        - name: Test macOS 14
+        - name: Test macOS 15 AArch64
           target: aarch64-apple-darwin
-          os: macos-14
+          os: macos-15-xlarge
           frameworks: MACOS_14
-        - name: Build macOS AArch64
-          target: aarch64-apple-darwin
-          frameworks: MACOS_11
-        - name: Test macOS old SDK
-          target: x86_64-apple-darwin
-          # Oldest macOS version we support
-          sdk: "10.12"
-          frameworks: MACOS_10_12
-          # The SDK itself only supports compiling build scripts for x86_64
-          os: macos-13
-        - name: Test macOS nightly
+        - name: Test macOS 14 Aarch64 nightly
           target: aarch64-apple-darwin
+          os: macos-14-xlarge
+          frameworks: MACOS_14
           nightly: true
-          frameworks: MACOS_11
         - name: Build macOS 32bit
           target: i686-apple-darwin
+          # The SDK itself only supports compiling build scripts for x86_64
+          os: macos-13-large
+          frameworks: MACOS_10_13
           nightly: true
           build-std: true
           # Newest SDK that supports 32-bit
           sdk: "10.13"
-          frameworks: MACOS_10_13
-          # The SDK itself only supports compiling build scripts for x86_64
-          os: macos-13
-        - name: Build iOS simulator ARM64
+        - name: Build iOS simulator Aarch64
           target: aarch64-apple-ios-sim
+          os: macos-14-xlarge
           frameworks: IOS_10
-        - name: Build iOS ARM64
+        - name: Build iOS Aarch64
           target: aarch64-apple-ios
+          os: macos-14-xlarge
           frameworks: IOS_10
         - name: Build iOS ARMv7s
           target: armv7s-apple-ios
           nightly: true
           build-std: true
+          os: macos-14-xlarge
           frameworks: IOS_10
-        - name: Build iOS 32bit x86
+        - name: Build iOS x86
           target: i386-apple-ios
           nightly: true
           build-std: true
+          os: macos-14-xlarge
           frameworks: IOS_10
+        - name: Test macOS 14 x86_64 with 10.12 SDK
+          target: x86_64-apple-darwin
+          os: macos-14-large
+          frameworks: MACOS_10_12
+          # Oldest macOS version we support.
+          # The SDK itself only supports compiling build scripts for x86_64.
+          sdk: "10.12"
 
     env:
       CARGO_BUILD_TARGET: ${{ matrix.target }}
diff --git a/crates/test-ui/Cargo.toml b/crates/test-ui/Cargo.toml
index 4fc87fac6..c30046bba 100644
--- a/crates/test-ui/Cargo.toml
+++ b/crates/test-ui/Cargo.toml
@@ -41,6 +41,12 @@ block2 = { path = "../block2" }
 objc2 = { path = "../objc2" }
 objc2-foundation = { path = "../../framework-crates/objc2-foundation" }
 
+# To make CI work
+[target.'cfg(not(target_vendor = "apple"))'.dependencies]
+block2 = { path = "../block2", features = ["gnustep-1-7"] }
+objc2 = { path = "../objc2", features = ["gnustep-1-7"] }
+objc2-foundation = { path = "../../framework-crates/objc2-foundation", features = ["gnustep-1-7"] }
+
 [[bin]]
 name = "test-ui"
 required-features = ["run"]