diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 346bdd41b0a..02a2193ad88 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -319,7 +319,7 @@ jobs:
           - name: dist-x86_64-apple
             env:
               SCRIPT: "./x.py dist bootstrap --include-default-paths --host=x86_64-apple-darwin --target=x86_64-apple-darwin"
-              RUST_CONFIGURE_ARGS: "--enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false --set rust.lto=thin"
+              RUST_CONFIGURE_ARGS: "--enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set rust.lto=thin"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
@@ -332,7 +332,7 @@ jobs:
           - name: dist-apple-various
             env:
               SCRIPT: "./x.py dist bootstrap --include-default-paths --host='' --target=aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim"
-              RUST_CONFIGURE_ARGS: "--enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
+              RUST_CONFIGURE_ARGS: "--enable-sanitizers --enable-profiler --set rust.jemalloc"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
@@ -343,7 +343,7 @@ jobs:
           - name: x86_64-apple-1
             env:
               SCRIPT: "./x.py --stage 2 test --skip tests/ui --skip tests/rustdoc --skip tests/run-make-fulldeps"
-              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
+              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               MACOSX_STD_DEPLOYMENT_TARGET: 10.12
@@ -354,7 +354,7 @@ jobs:
           - name: x86_64-apple-2
             env:
               SCRIPT: "./x.py --stage 2 test tests/ui tests/rustdoc tests/run-make-fulldeps"
-              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false"
+              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               MACOSX_STD_DEPLOYMENT_TARGET: 10.12
@@ -365,7 +365,7 @@ jobs:
           - name: dist-aarch64-apple
             env:
               SCRIPT: "./x.py dist bootstrap --include-default-paths --stage 2"
-              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --host=aarch64-apple-darwin --target=aarch64-apple-darwin --enable-full-tools --enable-sanitizers --enable-profiler --disable-docs --set rust.jemalloc --set llvm.ninja=false"
+              RUST_CONFIGURE_ARGS: "--build=x86_64-apple-darwin --host=aarch64-apple-darwin --target=aarch64-apple-darwin --enable-full-tools --enable-sanitizers --enable-profiler --disable-docs --set rust.jemalloc"
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
               USE_XCODE_CLANG: 1
diff --git a/src/ci/github-actions/ci.yml b/src/ci/github-actions/ci.yml
index fef2245e672..61e0e2c0bc7 100644
--- a/src/ci/github-actions/ci.yml
+++ b/src/ci/github-actions/ci.yml
@@ -511,7 +511,7 @@ jobs:
           - name: dist-x86_64-apple
             env:
               SCRIPT: ./x.py dist bootstrap --include-default-paths --host=x86_64-apple-darwin --target=x86_64-apple-darwin
-              RUST_CONFIGURE_ARGS: --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false --set rust.lto=thin
+              RUST_CONFIGURE_ARGS: --enable-full-tools --enable-sanitizers --enable-profiler --set rust.jemalloc --set rust.lto=thin
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
@@ -525,7 +525,7 @@ jobs:
           - name: dist-apple-various
             env:
               SCRIPT: ./x.py dist bootstrap --include-default-paths --host='' --target=aarch64-apple-ios,x86_64-apple-ios,aarch64-apple-ios-sim
-              RUST_CONFIGURE_ARGS: --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false
+              RUST_CONFIGURE_ARGS: --enable-sanitizers --enable-profiler --set rust.jemalloc
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
@@ -537,7 +537,7 @@ jobs:
           - name: x86_64-apple-1
             env: &env-x86_64-apple-tests
               SCRIPT: ./x.py --stage 2 test --skip tests/ui --skip tests/rustdoc --skip tests/run-make-fulldeps
-              RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc --set llvm.ninja=false
+              RUST_CONFIGURE_ARGS: --build=x86_64-apple-darwin --enable-sanitizers --enable-profiler --set rust.jemalloc
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               MACOSX_DEPLOYMENT_TARGET: 10.12
               MACOSX_STD_DEPLOYMENT_TARGET: 10.12
@@ -565,7 +565,6 @@ jobs:
                 --enable-profiler
                 --disable-docs
                 --set rust.jemalloc
-                --set llvm.ninja=false
               RUSTC_RETRY_LINKER_ON_SEGFAULT: 1
               SELECT_XCODE: /Applications/Xcode_13.4.1.app
               USE_XCODE_CLANG: 1
diff --git a/src/ci/scripts/install-ninja.sh b/src/ci/scripts/install-ninja.sh
index b8261d8a6f2..5145a03e353 100755
--- a/src/ci/scripts/install-ninja.sh
+++ b/src/ci/scripts/install-ninja.sh
@@ -13,4 +13,6 @@ if isWindows; then
     rm ninja.zip
     ciCommandSetEnv "RUST_CONFIGURE_ARGS" "${RUST_CONFIGURE_ARGS} --enable-ninja"
     ciCommandAddPath "$(pwd)/ninja"
+elif isMacOS; then
+    brew install ninja
 fi