diff --git a/configure.ac b/configure.ac
index b9e441b..04fde15 100644
--- a/configure.ac
+++ b/configure.ac
@@ -53,12 +53,7 @@ AC_ARG_WITH(xorg-module-dir,
 inputdir=${moduledir}/input
 AC_SUBST(inputdir)
 
-# Checks for extensions
-XORG_DRIVER_CHECK_EXT(RANDR, randrproto)
-XORG_DRIVER_CHECK_EXT(XINPUT, inputproto)
-
-# Checks for pkg-config packages
-PKG_CHECK_MODULES(XORG, [xorg-server >= 1.18.0] xproto $REQUIRED_MODULES)
+PKG_CHECK_MODULES(XORG, [xorg-server >= 25.0.0] xproto randrproto inputproto)
 
 AC_CONFIG_FILES([Makefile src/Makefile man/Makefile])
 AC_OUTPUT