diff --git a/library/PtrPoker/ByteString.hs b/library/PtrPoker/ByteString.hs
--- a/library/PtrPoker/ByteString.hs
+++ b/library/PtrPoker/ByteString.hs
@@ -1,4 +1,5 @@
 {-# LANGUAGE CPP #-}
+{-# OPTIONS_GHC -Wno-unused-imports #-}
 
 module PtrPoker.ByteString where
 
@@ -8,6 +9,7 @@
 import qualified Data.ByteString.Builder.Scientific as ScientificBuilder
 import Data.ByteString.Internal
 import qualified Data.ByteString.Lazy as Lazy
+import qualified Data.Text.Encoding as TextEncoding
 import qualified PtrPoker.Ffi as Ffi
 import PtrPoker.Prelude hiding (empty)
 import qualified PtrPoker.Text as Text
diff --git a/library/PtrPoker/Poke.hs b/library/PtrPoker/Poke.hs
--- a/library/PtrPoker/Poke.hs
+++ b/library/PtrPoker/Poke.hs
@@ -1,7 +1,10 @@
 {-# LANGUAGE CPP #-}
+{-# OPTIONS_GHC -Wno-unused-imports #-}
 
 module PtrPoker.Poke where
 
+import qualified Data.Text.Array as TextArray
+import qualified Data.Text.Internal as TextInternal
 import qualified PtrPoker.Ffi as Ffi
 import qualified PtrPoker.IO.ByteString as ByteStringIO
 import qualified PtrPoker.IO.Prim as PrimIO
diff --git a/ptr-poker.cabal b/ptr-poker.cabal
--- a/ptr-poker.cabal
+++ b/ptr-poker.cabal
@@ -1,6 +1,6 @@
 cabal-version: 3.0
 name:          ptr-poker
-version:       0.1.2.9
+version:       0.1.2.10
 synopsis:      Pointer poking action construction and composition toolkit
 homepage:      https://github.com/nikita-volkov/ptr-poker
 bug-reports:   https://github.com/nikita-volkov/ptr-poker/issues
@@ -98,12 +98,11 @@
     , rerebase           >=1.10.0.1 && <2
 
 benchmark bench
-  import:           base-settings
-  type:             exitcode-stdio-1.0
-  hs-source-dirs:   bench
-  main-is:          Main.hs
-  ghc-options:      -O2 -threaded -with-rtsopts=-N
-  default-language: Haskell2010
+  import:         base-settings
+  type:           exitcode-stdio-1.0
+  hs-source-dirs: bench
+  main-is:        Main.hs
+  ghc-options:    -O2 -threaded -with-rtsopts=-N
   build-depends:
     , gauge      >=0.2.5    && <0.3
     , ptr-poker