diff --git a/ghc-scientific.spec b/ghc-scientific.spec
index 6694f9c..e81c6cf 100644
--- a/ghc-scientific.spec
+++ b/ghc-scientific.spec
@@ -26,7 +26,7 @@ License:        BSD-3-Clause
 Group:          Development/Libraries/Haskell
 URL:            https://hackage.haskell.org/package/%{pkg_name}
 Source0:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz
-Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/3.cabal#/%{pkg_name}.cabal
+Source1:        https://hackage.haskell.org/package/%{pkg_name}-%{version}/revision/4.cabal#/%{pkg_name}.cabal
 BuildRequires:  ghc-Cabal-devel
 BuildRequires:  ghc-binary-devel
 BuildRequires:  ghc-bytestring-devel
diff --git a/scientific.cabal b/scientific.cabal
index 3f77b77..5fe9b6d 100644
--- a/scientific.cabal
+++ b/scientific.cabal
@@ -1,6 +1,6 @@
 name:                scientific
 version:             0.3.5.2
-x-revision: 3
+x-revision: 4
 synopsis:            Numbers represented using scientific notation
 description:
   @Data.Scientific@ provides the number type 'Scientific'. Scientific numbers are
@@ -67,7 +67,7 @@ library
                        Utils
   other-extensions:    DeriveDataTypeable, BangPatterns
   ghc-options:         -Wall
-  build-depends:       base        >= 4.3   && < 4.11
+  build-depends:       base        >= 4.3   && < 4.12
                      , integer-logarithms >= 1 && <1.1
                      , deepseq     >= 1.3   && < 1.5
                      , text        >= 0.8   && < 1.3
@@ -98,7 +98,7 @@ test-suite test-scientific
   ghc-options:      -Wall
 
   build-depends: scientific
-               , base             >= 4.3   && < 4.11
+               , base             >= 4.3   && < 4.12
                , binary           >= 0.4.1 && < 0.9
                , tasty            >= 0.5   && < 1.1
                , tasty-ant-xml    >= 1.0   && < 1.2
@@ -122,5 +122,5 @@ benchmark bench-scientific
   default-language: Haskell2010
   ghc-options:      -O2
   build-depends:    scientific
-                  , base        >= 4.3   && < 4.11
+                  , base        >= 4.3   && < 4.12
                   , criterion   >= 0.5   && < 1.4