diff --git a/src/Topograph.hs b/src/Topograph.hs
--- a/src/Topograph.hs
+++ b/src/Topograph.hs
@@ -41,8 +41,6 @@
     ) where
 
 import Data.Orphans ()
-import Prelude ()
-import Prelude.Compat
 
 import Control.Monad.ST (ST, runST)
 import Data.Foldable    (for_)
diff --git a/topograph.cabal b/topograph.cabal
--- a/topograph.cabal
+++ b/topograph.cabal
@@ -1,6 +1,6 @@
 cabal-version:   2.2
 name:            topograph
-version:         1.0.0.2
+version:         1.0.1
 synopsis:        Directed acyclic graphs.
 category:        Data, Graph
 description:
@@ -21,25 +21,22 @@
 copyright:       (c) 2018-2019 Oleg Grenrus
 build-type:      Simple
 extra-doc-files:
-  dag-original.png
   dag-closure.png
+  dag-original.png
   dag-reduction.png
   dag-transpose.png
   dag-tree.png
 
 tested-with:
-  GHC ==7.6.3
-   || ==7.8.4
-   || ==7.10.3
-   || ==8.0.2
-   || ==8.2.2
-   || ==8.4.4
-   || ==8.6.5
+  GHC ==8.6.5
    || ==8.8.4
-   || ==8.10.4
+   || ==8.10.7
    || ==9.0.2
-   || ==9.2.4
-   || ==9.4.1
+   || ==9.2.8
+   || ==9.4.8
+   || ==9.6.5
+   || ==9.8.2
+   || ==9.10.1
 
 source-repository head
   type:     git
@@ -48,11 +45,10 @@
 library
   exposed-modules:  Topograph
   build-depends:
-    , base          >=4.6     && <4.18
-    , base-compat   ^>=0.10.5 || ^>=0.11.0 || ^>=0.12.0
-    , base-orphans  ^>=0.8
-    , containers    ^>=0.5.0.0 || ^>=0.6.0.1
-    , vector        ^>=0.12 || ^>=0.13
+    , base          >=4.12.0.0  && <4.21
+    , base-orphans  ^>=0.9.2
+    , containers    ^>=0.6.0.1  || ^>=0.7
+    , vector        ^>=0.13.1.0
 
   other-extensions:
     RankNTypes