diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
index 37c00230c853..dd89bea24392 100644
--- a/build/moz.configure/toolchain.configure
+++ b/build/moz.configure/toolchain.configure
@@ -233,7 +233,7 @@ with only_when(host_is_osx | target_is_osx):
     )
 
     def mac_sdk_min_version():
-        return "15.5"
+        return "15.2"
 
     @depends(
         "--with-macos-sdk",