diff --git a/pkgs/development/libraries/haskell/convertible/1.0.11.1.nix b/pkgs/development/libraries/haskell/convertible/1.0.11.1.nix
new file mode 100644
index 00000000000..8a79e50527d
--- /dev/null
+++ b/pkgs/development/libraries/haskell/convertible/1.0.11.1.nix
@@ -0,0 +1,17 @@
+{ cabal, mtl, text, time }:
+
+cabal.mkDerivation (self: {
+  pname = "convertible";
+  version = "1.0.11.1";
+  sha256 = "1r50a2rpfsx0s7dv8ww5xck33b1mhy73gfilffrbqd4hxjgnxlj6";
+  isLibrary = true;
+  isExecutable = true;
+  buildDepends = [ mtl text time ];
+  meta = {
+    homepage = "http://hackage.haskell.org/cgi-bin/hackage-scripts/package/convertible";
+    description = "Typeclasses and instances for converting between types";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+    maintainers = [ self.stdenv.lib.maintainers.andres ];
+  };
+})
diff --git a/pkgs/development/libraries/haskell/convertible/default.nix b/pkgs/development/libraries/haskell/convertible/1.1.0.0.nix
similarity index 100%
rename from pkgs/development/libraries/haskell/convertible/default.nix
rename to pkgs/development/libraries/haskell/convertible/1.1.0.0.nix
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 283f3ffdcca..3eb4038b69b 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -835,7 +835,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
 
   controlMonadLoop = callPackage ../development/libraries/haskell/control-monad-loop {};
 
-  convertible = callPackage ../development/libraries/haskell/convertible {};
+  convertible_1_0_11_1 = callPackage ../development/libraries/haskell/convertible/1.0.11.1.nix {};
+  convertible_1_1_0_0 = callPackage ../development/libraries/haskell/convertible/1.1.0.0.nix {};
+  convertible = self.convertible_1_1_0_0;
 
   continuedFractions = callPackage ../development/libraries/haskell/continued-fractions {};
 
@@ -2540,7 +2542,9 @@ let result = let callPackage = x : y : modifyPrio (newScope result.finalReturn x
   # pass it explicitly in rare circumstances.
   time = null;
 
-  timeparsers = callPackage ../development/libraries/haskell/timeparsers {};
+  timeparsers = callPackage ../development/libraries/haskell/timeparsers {
+    convertible = self.convertible_1_0_11_1;
+  };
 
   timeRecurrence = callPackage ../development/libraries/haskell/time-recurrence {};