diff --git a/relational-schemas.cabal b/relational-schemas.cabal
--- a/relational-schemas.cabal
+++ b/relational-schemas.cabal
@@ -1,5 +1,5 @@
 name:                relational-schemas
-version:             0.1.3.4
+version:             0.1.3.5
 synopsis:            RDBMSs' schema templates for relational-query
 description:         This package contains some RDBMSs' schema structure definitions.
                      Supported RDBMS schemas are below:
@@ -79,7 +79,7 @@
                        , time
                        , bytestring
 
-                       , relational-query >=0.8 && <0.9
+                       , relational-query >=0.8.8 && <0.9
 
   hs-source-dirs:      src
   ghc-options:         -Wall
diff --git a/src/Database/Relational/Schema/IBMDB2.hs b/src/Database/Relational/Schema/IBMDB2.hs
--- a/src/Database/Relational/Schema/IBMDB2.hs
+++ b/src/Database/Relational/Schema/IBMDB2.hs
@@ -26,9 +26,8 @@
 import Data.Time (LocalTime, Day)
 import Language.Haskell.TH (TypeQ)
 
-import Database.Relational.Query.Type (relationalQuery)
 import Database.Relational.Query
-  (Query, Relation, query, relation',
+  (Query, relationalQuery, Relation, query, relation',
    wheres, (.=.), (!), (><), placeholder, asc, value)
 
 import Control.Applicative ((<|>))
diff --git a/src/Database/Relational/Schema/MySQL.hs b/src/Database/Relational/Schema/MySQL.hs
--- a/src/Database/Relational/Schema/MySQL.hs
+++ b/src/Database/Relational/Schema/MySQL.hs
@@ -19,6 +19,7 @@
 import           Language.Haskell.TH    (TypeQ)
 
 import Database.Relational.Query        ( Query
+                                        , relationalQuery
                                         , query
                                         , relation'
                                         , wheres
@@ -29,7 +30,6 @@
                                         , asc
                                         , value
                                         )
-import Database.Relational.Query.Type   (relationalQuery)
 
 import           Database.Relational.Schema.MySQLInfo.Columns           (Columns, columns)
 import qualified Database.Relational.Schema.MySQLInfo.Columns           as Columns
diff --git a/src/Database/Relational/Schema/PostgreSQL.hs b/src/Database/Relational/Schema/PostgreSQL.hs
--- a/src/Database/Relational/Schema/PostgreSQL.hs
+++ b/src/Database/Relational/Schema/PostgreSQL.hs
@@ -34,9 +34,8 @@
   (DiffTime, NominalDiffTime,
    LocalTime, ZonedTime, Day, TimeOfDay)
 
-import Database.Relational.Query.Type (relationalQuery)
 import Database.Relational.Query
-  (Query, Relation, query, query', relation', relation, union,
+  (Query, relationalQuery, Relation, query, query', relation', relation, union,
    wheres, (.=.), (.>.), in', values, (!), fst', snd',
    placeholder, asc, value, unsafeProjectSql, (><))
 
diff --git a/src/Database/Relational/Schema/SQLite3.hs b/src/Database/Relational/Schema/SQLite3.hs
--- a/src/Database/Relational/Schema/SQLite3.hs
+++ b/src/Database/Relational/Schema/SQLite3.hs
@@ -15,8 +15,7 @@
 import Data.Int (Int8, Int16, Int32, Int64)
 import Data.Map (Map)
 import Data.Time (Day, LocalTime)
-import Database.Relational.Query (Query)
-import Database.Relational.Query.Type (unsafeTypedQuery)
+import Database.Relational.Query (Query, unsafeTypedQuery)
 import Database.Relational.Schema.SQLite3Syscat.IndexInfo
 import Database.Relational.Schema.SQLite3Syscat.IndexList
 import Database.Relational.Schema.SQLite3Syscat.TableInfo