diff --git a/Changelog.md b/Changelog.md
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,9 @@
 # Changelog for `proto-lens-arbitrary`
 
+## v0.1.2.1
+- Bump the dependency on `base` for `ghc-8.4.2`.
+- Bump the dependency for `QuickCheck-2.11`.
+
 ## v0.1.2.0
 - Remove support for `ghc-7.10`. (#136)
 - Use a `.cabal` file that's auto-generated from `hpack`. (#138)
diff --git a/proto-lens-arbitrary.cabal b/proto-lens-arbitrary.cabal
--- a/proto-lens-arbitrary.cabal
+++ b/proto-lens-arbitrary.cabal
@@ -2,10 +2,10 @@
 --
 -- see: https://github.com/sol/hpack
 --
--- hash: 9e84da8b472df0355cae508146fec0dacd00229345ed731b95cc3936649a2364
+-- hash: 369fb6fad5f45813b42b9f7d4c5b5fc63dcbe96c82005ddd6ff0143e8870bd6a
 
 name:           proto-lens-arbitrary
-version:        0.1.2.0
+version:        0.1.2.1
 synopsis:       Arbitrary instances for proto-lens.
 description:    The proto-lens-arbitrary allows generating arbitrary messages for use with QuickCheck.
 category:       Data
@@ -31,8 +31,8 @@
   hs-source-dirs:
       src
   build-depends:
-      QuickCheck >=2.8 && <2.11
-    , base >=4.8 && <4.11
+      QuickCheck >=2.8 && <2.12
+    , base >=4.8 && <4.12
     , bytestring ==0.10.*
     , containers ==0.5.*
     , lens-family ==1.2.*