diff --git a/configure.in b/configure.in
index d1cda7dba..2155a37ca 100644
--- a/configure.in
+++ b/configure.in
@@ -74,7 +74,7 @@ if test -z "$version_num"; then
   AC_MSG_ERROR([Could not detect PostgreSQL version from pg_config.])
 fi
 
-if test "$version_num" != '11' -a "$version_num" != '12'; then
+if test "$version_num" != '11' -a "$version_num" != '12' -a "$version_num" != '13'; then
    AC_MSG_ERROR([Citus is not compatible with the detected PostgreSQL version ${version_num}.])
 else
    AC_MSG_NOTICE([building against PostgreSQL $version_num])