diff --git a/wget.spec b/wget.spec
index acaf978..8a2881e 100644
--- a/wget.spec
+++ b/wget.spec
@@ -44,7 +44,8 @@ BuildRequires:  openssl-devel
 BuildRequires:  pkgconfig >= 0.9.0
 BuildRequires:  pkgconfig(libmetalink)
 BuildRequires:  pkgconfig(libpcre2-8)
-BuildRequires:  pkgconfig(libproxy-1.0)
+# px_proxy_factory_free_proxies added in 0.4.16
+BuildRequires:  pkgconfig(libproxy-1.0) >= 0.4.16
 BuildRequires:  pkgconfig(libpsl)
 BuildRequires:  pkgconfig(uuid)
 %if %{with regression_tests}