diff --git a/hatch_build.py b/hatch_build.py
index 3baec67cb..5e6489add 100644
--- a/hatch_build.py
+++ b/hatch_build.py
@@ -283,6 +283,8 @@ def _pact_lib_url(self, version: str) -> str:  # noqa: C901, PLR0912
             os = "linux"
             if platform.endswith("x86_64"):
                 machine = "x86_64-musl"
+            elif platform.endswith("aarch64"):
+                machine = "aarch64-musl"
             else:
                 raise UnsupportedPlatformError(platform)
             return PACT_LIB_URL.format(