diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,12 @@
 o'clock uses [PVP Versioning][1].
 The change log is available [on GitHub][2].
 
+1.4.0.1
+=======
+* [#145](https://github.com/serokell/o-clock/pull/145)
+  + Bump some upper bounds.
+  + Get rid of warnings with GHC-9.12.
+
 1.4.0
 =====
 
diff --git a/o-clock.cabal b/o-clock.cabal
--- a/o-clock.cabal
+++ b/o-clock.cabal
@@ -4,7 +4,7 @@
 -- SPDX-License-Identifier: MPL-2.0
 
 name:                o-clock
-version:             1.4.0
+version:             1.4.0.1
 synopsis:            Type-safe time library.
 description:         See README.md for details.
 homepage:            https://github.com/serokell/o-clock
@@ -22,8 +22,11 @@
                    , README.lhs
 tested-with:         GHC == 9.0.2
                    , GHC == 9.2.8
-                   , GHC == 9.4.5
-                   , GHC == 9.6.2
+                   , GHC == 9.4.8
+                   , GHC == 9.6.6
+                   , GHC == 9.8.4
+                   , GHC == 9.10.1
+                   , GHC == 9.12.1
 
 source-repository head
   type:     git
@@ -73,7 +76,7 @@
                        Test.Time.Units
 
   build-depends:       o-clock
-                     , hedgehog       >= 0.6 && < 1.4
+                     , hedgehog       >= 0.6 && < 1.6
                      , hspec-expectations ^>= 0.8
                      , tasty          >= 0.12 && < 1.6
                      , tasty-hedgehog >= 0.1 && < 1.5.0
@@ -94,7 +97,7 @@
   main-is:             Doctest.hs
 
   build-tool-depends:  doctest:doctest
-  build-depends:       doctest >= 0.16 && < 0.23
+  build-depends:       doctest >= 0.16 && < 0.24
                      , Glob    >= 0.9 && < 0.11
   ghc-options:         -threaded -rtsopts -with-rtsopts=-N
 
@@ -109,7 +112,7 @@
   build-tool-depends:  markdown-unlit:markdown-unlit
   build-depends:       o-clock
                      , markdown-unlit >= 0.5 && < 0.7
-  ghc-options:         -threaded -rtsopts -with-rtsopts=-N -pgmL markdown-unlit
+  ghc-options:         -threaded -rtsopts -with-rtsopts=-N -pgmL markdown-unlit -Wno-orphans
 
 benchmark o-clock-benchmark
   import:              common-options
diff --git a/src/Time/Units.hs b/src/Time/Units.hs
--- a/src/Time/Units.hs
+++ b/src/Time/Units.hs
@@ -72,7 +72,9 @@
 import Data.Char (isDigit, isLetter)
 import Data.Coerce (coerce)
 import Data.Data (Data)
+#if !(MIN_VERSION_base(4,20,0))
 import Data.Foldable (foldl')
+#endif
 import Data.Proxy (Proxy (..))
 import Data.Semigroup (Semigroup (..))
 import GHC.Generics (Generic)