diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Revision history for deriving-trans
 
+## 0.3.2.0 *31 Mar 2022*
+
+* Remove version boundaries of dependencies.
+
 ## 0.3.1.0 *08 Feb 2022*
 
 * Add `MonadFix` instance to `Elevator`.
diff --git a/deriving-trans.cabal b/deriving-trans.cabal
--- a/deriving-trans.cabal
+++ b/deriving-trans.cabal
@@ -1,6 +1,6 @@
 cabal-version:       3.0
 name:                deriving-trans
-version:             0.3.1.0
+version:             0.3.2.0
 synopsis:            Derive instances for monad transformer stacks
 description:         Implementing instances for monad transformer stacks can be tedious.
                      <https://hackage.haskell.org/package/mtl mtl> defines each instance for each
@@ -30,11 +30,11 @@
     Control.Monad.Trans.Elevator
   --other-modules:
   build-depends:
-    , base              >= 4.5     && < 5
-    , monad-control     >= 1.0.2.0 && < 1.1
-    , mtl               >= 2.2.2   && < 2.3
-    , transformers      >= 0.5.6.2 && < 0.5.7
-    , transformers-base >= 0.4.5.2 && < 0.5
+    , base < 5
+    , monad-control
+    , mtl
+    , transformers
+    , transformers-base
   hs-source-dirs: src
   default-language: Haskell2010
   default-extensions:
@@ -60,4 +60,6 @@
     StandaloneKindSignatures
     TypeApplications
     TypeFamilies
-  ghc-options: -Wall
+  ghc-options:
+    -Wall
+    -Wunused-packages