diff --git a/pkgs/development/libraries/haskell/base-prelude/default.nix b/pkgs/development/libraries/haskell/base-prelude/default.nix
index 5cf966f35bd..a44cdbfa6c1 100644
--- a/pkgs/development/libraries/haskell/base-prelude/default.nix
+++ b/pkgs/development/libraries/haskell/base-prelude/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "base-prelude";
-  version = "0.1.7";
-  sha256 = "0xzgwj5sqx7y57biby77d6vrsghcmq85ha3frn8k4xq7wqqk4aqp";
+  version = "0.1.11";
+  sha256 = "0g6p1d3r6jbqcd8flxfbasb40ga7k90bc0q07drwhlaiadjnx1an";
   meta = {
     homepage = "https://github.com/nikita-volkov/base-prelude";
     description = "The most complete prelude formed from only the \"base\" package";
diff --git a/pkgs/development/libraries/haskell/web-routes-happstack/default.nix b/pkgs/development/libraries/haskell/web-routes-happstack/default.nix
new file mode 100644
index 00000000000..299357e2073
--- /dev/null
+++ b/pkgs/development/libraries/haskell/web-routes-happstack/default.nix
@@ -0,0 +1,15 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, happstackServer, text, webRoutes }:
+
+cabal.mkDerivation (self: {
+  pname = "web-routes-happstack";
+  version = "0.23.9";
+  sha256 = "0vsjm979z21858wk9z1b855jqmr4apm35b5ff8x6nynq6kiflrzw";
+  buildDepends = [ happstackServer text webRoutes ];
+  meta = {
+    description = "Adds support for using web-routes with Happstack";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})
diff --git a/pkgs/top-level/haskell-packages.nix b/pkgs/top-level/haskell-packages.nix
index 09017c19303..c17972dbd38 100644
--- a/pkgs/top-level/haskell-packages.nix
+++ b/pkgs/top-level/haskell-packages.nix
@@ -2889,6 +2889,8 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   webRoutesBoomerang = callPackage ../development/libraries/haskell/web-routes-boomerang {};
 
+  webRoutesHappstack = callPackage ../development/libraries/haskell/web-routes-happstack {};
+
   websockets = callPackage ../development/libraries/haskell/websockets {};
 
   websocketsSnap = callPackage ../development/libraries/haskell/websockets-snap {};