diff --git a/configure.ac b/configure.ac
index 845b186..8fd31ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,7 +13,8 @@
 AC_PROG_MAKE_SET
 
 # Checks for libraries.
-PKG_CHECK_MODULES([SYSTEMD], [libsystemd >= 221])
+PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus], [], [AC_MSG_ERROR(["sdbusplus required and not found."])])
+PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces], [], [AC_MSG_ERROR(["phosphor-dbus-interfaces required and not found."])])
 
 # Checks for typedefs, structures, and compiler characteristics.
 AX_CXX_COMPILE_STDCXX_14([noext])