diff --git a/.github/actions/3-build-cross/action.yml b/.github/actions/3-build-cross/action.yml
index 51acd708d69..2116bc201df 100644
--- a/.github/actions/3-build-cross/action.yml
+++ b/.github/actions/3-build-cross/action.yml
@@ -79,7 +79,7 @@ runs:
         set -eux
         cd ..
         arch='${{ inputs.arch }}'
-        triple="$arch-apple-macos"
+        triple="$arch-apple-macos$MACOSX_DEPLOYMENT_TARGET"
         echo "DFLAGS=-mtriple=$triple -L-L$PWD/build-cross-libs/lib -Xcc=-target -Xcc=$triple -Xcc=-isysroot -Xcc=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk" >> $GITHUB_ENV
         echo "CROSS_TRIPLE=$triple" >> $GITHUB_ENV
         echo "CROSS_CMAKE_FLAGS=-DCMAKE_OSX_ARCHITECTURES=$arch" >> $GITHUB_ENV
diff --git a/.github/actions/merge-macos/action.yml b/.github/actions/merge-macos/action.yml
index 7efd0e4a906..ebaee4f6fa6 100644
--- a/.github/actions/merge-macos/action.yml
+++ b/.github/actions/merge-macos/action.yml
@@ -64,7 +64,7 @@ runs:
             switches = [
                 \"-defaultlib=phobos2-ldc,druntime-ldc\",
                 \"-Xcc=-target\",
-                \"-Xcc=x86_64-apple-macos\",
+                \"-Xcc=x86_64-apple-macos$MACOSX_DEPLOYMENT_TARGET\",
             ];
             lib-dirs = [
                 \"%%ldcbinarypath%%/../lib-x86_64\",
@@ -77,7 +77,7 @@ runs:
             switches = [
                 \"-defaultlib=phobos2-ldc,druntime-ldc\",
                 \"-Xcc=-target\",
-                \"-Xcc=arm64-apple-macos\",
+                \"-Xcc=arm64-apple-macos$MACOSX_DEPLOYMENT_TARGET\",
             ];
             lib-dirs = [
                 \"%%ldcbinarypath%%/../lib-arm64\",
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 55a645c6ab8..60bc02f45ec 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -248,6 +248,8 @@ jobs:
     name: macOS universal
     runs-on: macos-latest
     timeout-minutes: 30
+    env:
+      MACOSX_DEPLOYMENT_TARGET: 11.0
     needs:
       - build-native
       - build-cross
diff --git a/driver/targetmachine.cpp b/driver/targetmachine.cpp
index da61df6dea8..73de806ac40 100644
--- a/driver/targetmachine.cpp
+++ b/driver/targetmachine.cpp
@@ -450,10 +450,10 @@ createTargetMachine(const std::string targetTriple, const std::string arch,
     triple = llvm::Triple(
         llvm::Triple::normalize(llvm::sys::getDefaultTargetTriple()));
 
+    // Apple: translate darwin to macos, apparently like clang
     if (triple.getOS() == llvm::Triple::Darwin) {
-      // We only support OSX, so darwin should really be macosx.
       llvm::SmallString<16> osname;
-      osname += "macosx";
+      osname += "macos";
       // We have to specify OS version in the triple to avoid linker warnings,
       // see https://github.com/ldc-developers/ldc/issues/4501.
       // If environment variable MACOSX_DEPLOYMENT_TARGET is not set, then use
diff --git a/tests/compilable/gh4489.d b/tests/compilable/gh4489.d
index 5b20273e458..450a49b8e1a 100644
--- a/tests/compilable/gh4489.d
+++ b/tests/compilable/gh4489.d
@@ -1,5 +1,5 @@
 // REQUIRES: target_AArch64
-// RUN: %ldc -mtriple=arm64-apple-macos -c %s
+// RUN: %ldc -mtriple=arm64-apple-macos11.0 -c %s
 
 void foo(inout float[3]);