diff --git a/pkgs/development/libraries/haskell/aeson/default.nix b/pkgs/development/libraries/haskell/aeson/0.6.2.1.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/aeson/default.nix
rename to pkgs/development/libraries/haskell/aeson/0.6.2.1.nix
diff --git a/pkgs/development/libraries/haskell/aeson/0.7.0.0.nix b/pkgs/development/libraries/haskell/aeson/0.7.0.0.nix
new file mode 100644
index 000000000000..41bbdbf5a0b9
--- /dev/null
+++ b/pkgs/development/libraries/haskell/aeson/0.7.0.0.nix
@@ -0,0 +1,26 @@
+{ cabal, attoparsec, deepseq, dlist, hashable, HUnit, mtl
+, QuickCheck, scientific, syb, testFramework, testFrameworkHunit
+, testFrameworkQuickcheck2, text, time, unorderedContainers, vector
+}:
+
+cabal.mkDerivation (self: {
+  pname = "aeson";
+  version = "0.7.0.0";
+  sha256 = "14xh7i07ha2hgljq0y0v7f5gkn0pv2zqj8l9j92957mf7f17zwf6";
+  buildDepends = [
+    attoparsec deepseq dlist hashable mtl scientific syb text time
+    unorderedContainers vector
+  ];
+  testDepends = [
+    attoparsec HUnit QuickCheck testFramework testFrameworkHunit
+    testFrameworkQuickcheck2 text time unorderedContainers vector
+  ];
+  doCheck = false;
+  meta = {
+    homepage = "https://github.com/bos/aeson";
+    description = "Fast JSON parsing and encoding";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.andres ];
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 764955b72104..798103153ece 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -522,7 +522,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   abstractPar = callPackage ../development/libraries/haskell/abstract-par {};
 
-  aeson = callPackage ../development/libraries/haskell/aeson {};
+  aeson_0_6_2_1 = callPackage ../development/libraries/haskell/aeson/0.6.2.1.nix {};
+  aeson_0_7_0_0 = callPackage ../development/libraries/haskell/aeson/0.7.0.0.nix {};
+  aeson = self.aeson_0_6_2_1;
 
   aesonLens = callPackage ../development/libraries/haskell/aeson-lens {};