diff --git a/setup.py b/setup.py
index b95d4fa4..7dcedb90 100644
--- a/setup.py
+++ b/setup.py
@@ -156,7 +156,7 @@ if not on_rtd:
     if sys.platform == "linux":
         linux_ext_kwargs = members_appended(
             dict(sources=[platform_linux_source]),
-            lib_ext_kwargs(pc, "BORG_LIBACL_PREFIX", "acl", "libacl", ">=2.3.1"),
+            lib_ext_kwargs(pc, "BORG_LIBACL_PREFIX", "acl", "libacl", ">= 2.2.47"),
             dict(extra_compile_args=cflags),
         )
     else: