diff --git a/decoding/Main.hs b/decoding/Main.hs
--- a/decoding/Main.hs
+++ b/decoding/Main.hs
@@ -1,14 +1,8 @@
 module Main where
 
-import BasePrelude
-import MTLPrelude
-import Control.DeepSeq
+import Prelude
 import Criterion
 import Criterion.Main
-import Data.Text (Text)
-import Data.ByteString (ByteString)
-import Data.Scientific (Scientific)
-import Data.Time
 import qualified PostgreSQL.Binary.Encoder as E
 import qualified PostgreSQL.Binary.Decoder as D
 
diff --git a/encoding/Main.hs b/encoding/Main.hs
--- a/encoding/Main.hs
+++ b/encoding/Main.hs
@@ -1,14 +1,8 @@
 module Main where
 
-import BasePrelude
-import MTLPrelude
-import Control.DeepSeq
+import Prelude
 import Criterion
 import Criterion.Main
-import Data.Text (Text)
-import Data.ByteString (ByteString)
-import Data.Scientific (Scientific)
-import Data.Time
 import qualified PostgreSQL.Binary.Encoder as E
 
 
diff --git a/postgresql-binary.cabal b/postgresql-binary.cabal
--- a/postgresql-binary.cabal
+++ b/postgresql-binary.cabal
@@ -1,7 +1,7 @@
 name:
   postgresql-binary
 version:
-  0.9.1.1
+  0.9.2
 synopsis:
   Encoders and decoders for the PostgreSQL's binary format
 description:
@@ -12,7 +12,7 @@
   is based on this library.
   .
   It supports all Postgres versions starting from 8.3 
-  and is tested against 8.3, 9.3 and 9.4
+  and is tested against 8.3, 9.3 and 9.5
   with the @integer_datetimes@ setting off and on.
 category:
   PostgreSQL, Database, Codecs, Parsing
@@ -78,7 +78,7 @@
     scientific >= 0.2 && < 0.4,
     bytestring >= 0.10.4 && < 0.11,
     text >= 1 && < 2,
-    vector >= 0.10 && < 0.12,
+    vector >= 0.10 && < 0.13,
     -- errors:
     loch-th == 0.2.*,
     placeholders == 0.1.*,
@@ -119,27 +119,18 @@
     tasty-smallcheck == 0.8.*,
     tasty-hunit == 0.9.*,
     quickcheck-instances >= 0.3.11 && < 0.4,
-    QuickCheck >= 2.8.1 && < 2.9,
+    QuickCheck >= 2.8.1 && < 2.10,
     -- data:
     aeson,
-    json-ast == 0.2.*,
-    uuid == 1.3.*,
-    time >= 1.4 && < 2,
-    scientific >= 0.2 && < 0.4,
-    bytestring >= 0.10.4 && < 0.11,
-    text >= 1 && < 2,
-    vector >= 0.10 && < 0.12,
-    -- errors:
-    loch-th == 0.2.*,
-    placeholders == 0.1.*,
-    -- general:
+    json-ast == 0.3.*,
     conversion == 1.*,
     conversion-bytestring == 1.*,
     conversion-text == 1.*,
-    either == 4.*,
-    transformers,
-    rebase >= 0.4 && < 2,
-    base
+    -- debugging:
+    loch-th == 0.2.*,
+    placeholders == 0.1.*,
+    -- general:
+    rerebase >= 1.0.2 && < 2
 
 
 benchmark encoding
@@ -162,15 +153,8 @@
     postgresql-binary,
     -- benchmarking:
     criterion >= 1.0 && < 1.2,
-    -- data:
-    time,
-    scientific,
-    text,
-    bytestring,
     -- general:
-    deepseq >= 1.3 && < 1.5,
-    mtl-prelude < 3,
-    base-prelude
+    rerebase < 2
 
 
 benchmark decoding
@@ -193,12 +177,5 @@
     postgresql-binary,
     -- benchmarking:
     criterion >= 1.0 && < 1.2,
-    -- data:
-    time,
-    scientific,
-    text,
-    bytestring,
     -- general:
-    deepseq >= 1.3 && < 1.5,
-    mtl-prelude < 3,
-    base-prelude
+    rerebase < 2
diff --git a/tasty/Main/Gens.hs b/tasty/Main/Gens.hs
--- a/tasty/Main/Gens.hs
+++ b/tasty/Main/Gens.hs
@@ -3,17 +3,16 @@
 import Main.Prelude hiding (assert, isRight, isLeft, choose)
 import Test.QuickCheck hiding (vector)
 import Test.QuickCheck.Instances
-import JSONAST (JSON)
+import JSONAST
 import qualified Main.PTI as PTI
 import qualified Data.Scientific as Scientific
 import qualified Data.UUID as UUID
 import qualified Data.Vector as Vector
-import qualified Rebase.Data.HashMap.Strict as HashMap
+import qualified Data.HashMap.Strict as HashMap
 import qualified PostgreSQL.Binary.Data as Data
 import qualified PostgreSQL.Binary.Encoder as Encoder
 import qualified Data.Text as Text
 import qualified Data.Aeson as Aeson
-import qualified JSONAST
 
 
 -- * Generators
@@ -43,17 +42,17 @@
         maxFreq =
           6
         null =
-          pure JSONAST.Null
+          pure JSON_Null
         bool =
-          fmap JSONAST.Bool arbitrary
+          fmap JSON_Bool arbitrary
         number =
-          fmap JSONAST.Number arbitrary
+          fmap JSON_Number arbitrary
         string =
-          fmap JSONAST.String text
+          fmap JSON_String text
         array =
-          fmap JSONAST.Array (vector (byDepth (succ depth)))
+          fmap JSON_Array (vector (byDepth (succ depth)))
         object =
-          fmap JSONAST.Object (hashMap text (byDepth (succ depth)))
+          fmap JSON_Object (hashMap text (byDepth (succ depth)))
 
 vector :: Gen a -> Gen (Vector a)
 vector element =
diff --git a/tasty/Main/Prelude.hs b/tasty/Main/Prelude.hs
--- a/tasty/Main/Prelude.hs
+++ b/tasty/Main/Prelude.hs
@@ -11,9 +11,9 @@
 where
 
 
--- rebase
+-- rerebase
 -------------------------
-import Rebase.Prelude as Exports hiding (assert, Data, fail)
+import Prelude as Exports hiding (assert, Data, fail, check)
 
 -- conversion
 -------------------------