diff --git a/core/grpc-haskell-core.cabal b/core/grpc-haskell-core.cabal
index dabc5b4..71ce861 100644
--- a/core/grpc-haskell-core.cabal
+++ b/core/grpc-haskell-core.cabal
@@ -22,7 +22,7 @@ Flag Debug
 library
   build-depends:
       base >=4.8 && <5.0
-    , clock >=0.6.0 && <0.8.0
+    , clock >=0.6.0 && <0.9
     , bytestring ==0.10.*
     , stm >=2.4 && <2.6
     , containers >=0.5 && <0.7
@@ -94,7 +94,7 @@ test-suite tests
     , proto3-suite
     , transformers
     , safe
-    , clock >=0.6.0 && <0.8.0
+    , clock >=0.6.0 && <0.9
     , turtle >= 1.2.0
     , text
     , QuickCheck >=2.8 && <3.0
diff --git a/grpc-haskell.cabal b/grpc-haskell.cabal
index 4863c9f..36ca99c 100644
--- a/grpc-haskell.cabal
+++ b/grpc-haskell.cabal
@@ -204,7 +204,7 @@ test-suite tests
     , proto3-suite
     , transformers
     , safe
-    , clock >=0.6.0 && <0.8.0
+    , clock >=0.6.0 && <0.9
     , turtle >= 1.2.0
     , text
     , QuickCheck >=2.10 && <3.0
diff --git a/nix/data-diverse.patch b/nix/data-diverse.patch
new file mode 100644
index 0000000..c37cd7c
--- /dev/null
+++ b/nix/data-diverse.patch
@@ -0,0 +1,13 @@
+diff --git a/test/Data/Diverse/ManySpec.hs b/test/Data/Diverse/ManySpec.hs
+index eb7203f..9672af8 100644
+--- a/test/Data/Diverse/ManySpec.hs
++++ b/test/Data/Diverse/ManySpec.hs
+@@ -305,7 +305,7 @@ spec = do
+ 
+         it "with duplicate fields has setter for unique fields 'amend''" $ do
+             let x = (5 :: Int) ./ False ./ 'X' ./ Just 'O' ./ (6 :: Int) ./ Just 'A' ./ nil
+-            amend' @ '[Bool, Char] x (True ./ 'B' ./ nil) `shouldBe`
++            amend' @'[Bool, Char] x (True ./ 'B' ./ nil) `shouldBe`
+                 (5 :: Int) ./ True ./ 'B' ./ Just 'O' ./ (6 :: Int) ./ Just 'A' ./ nil
+ 
+         it "can be folded with 'Many' handlers using 'forMany' or 'collect'" $ do
diff --git a/nix/grpc.nix b/nix/grpc.nix
deleted file mode 100644
index 92cf619..0000000
--- a/nix/grpc.nix
+++ /dev/null
@@ -1,60 +0,0 @@
-{ lib, stdenv, fetchFromGitHub, fetchpatch, cmake, zlib, c-ares, pkg-config, openssl, protobuf
-, gflags, abseil-cpp, libnsl
-}:
-
-stdenv.mkDerivation rec {
-  version = "1.34.1"; # N.B: if you change this, change pythonPackages.grpcio-tools to a matching version too
-  pname = "grpc";
-  src = fetchFromGitHub {
-    owner = "grpc";
-    repo = "grpc";
-    rev = "v${version}";
-    sha256 = "0p6si9i0gg885ag2x87a7jyzhgd5lhx2bh2vjj2ra1jn6y3vg6qk";
-    fetchSubmodules = true;
-  };
-  patches = [
-    # Fix build on armv6l (https://github.com/grpc/grpc/pull/21341)
-    (fetchpatch {
-      url = "https://github.com/grpc/grpc/commit/2f4cf1d9265c8e10fb834f0794d0e4f3ec5ae10e.patch";
-      sha256 = "0ams3jmgh9yzwmxcg4ifb34znamr7pb4qm0609kvil9xqvkqz963";
-    })
-  ];
-
-  nativeBuildInputs = [ cmake pkg-config ];
-  buildInputs = [ zlib c-ares c-ares.cmake-config openssl protobuf gflags abseil-cpp ]
-    ++ lib.optionals stdenv.isLinux [ libnsl ];
-
-  cmakeFlags =
-    [ "-DgRPC_ZLIB_PROVIDER=package"
-      "-DgRPC_CARES_PROVIDER=package"
-      "-DgRPC_SSL_PROVIDER=package"
-      "-DgRPC_PROTOBUF_PROVIDER=package"
-      "-DgRPC_GFLAGS_PROVIDER=package"
-      "-DgRPC_ABSL_PROVIDER=package"
-      "-DBUILD_SHARED_LIBS=ON"
-      "-DCMAKE_SKIP_BUILD_RPATH=OFF"
-    ];
-
-  # CMake creates a build directory by default, this conflicts with the
-  # basel BUILD file on case-insensitive filesystems.
-  preConfigure = ''
-    rm -vf BUILD
-  '';
-
-  preBuild = ''
-    export LD_LIBRARY_PATH=$(pwd)''${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH
-  '';
-
-  NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isClang "-Wno-error=unknown-warning-option";
-
-  enableParallelBuilds = true;
-
-  meta = with lib; {
-    description = "The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)";
-    license = licenses.asl20;
-    maintainers = [ maintainers.lnl7 maintainers.marsam ];
-    homepage = "https://grpc.io/";
-    platforms = platforms.all;
-    changelog = "https://github.com/grpc/grpc/releases/tag/v${version}";
-  };
-}
diff --git a/nix/parameterized.patch b/nix/parameterized.patch
deleted file mode 100644
index 08e03e8..0000000
--- a/nix/parameterized.patch
+++ /dev/null
@@ -1,44 +0,0 @@
-diff --git a/test/Parameterized/Control/Monad/Trans/Reader/ReaderSpec.hs b/test/Parameterized/Control/Monad/Trans/Reader/ReaderSpec.hs
-index a39d181..1999e57 100644
---- a/test/Parameterized/Control/Monad/Trans/Reader/ReaderSpec.hs
-+++ b/test/Parameterized/Control/Monad/Trans/Reader/ReaderSpec.hs
-@@ -91,7 +91,7 @@ whichIntBoolStringReader = do
- manyIntMaybeReader :: ReaderT (Many '[Int]) Maybe String
- manyIntMaybeReader = do
-     a <- ask
--    let r = fetch @Int a
-+    let r = grab @Int a
-     case r of
-         0 -> empty
-         r' -> pure $ show r'
-@@ -99,7 +99,7 @@ manyIntMaybeReader = do
- manyBoolMaybeReader :: ReaderT (Many '[Bool]) Maybe String
- manyBoolMaybeReader = do
-     a <- ask
--    let r = fetch @Bool a
-+    let r = grab @Bool a
-     case r of
-         False -> empty
-         r' -> pure $ show r'
-diff --git a/test/Parameterized/Control/Monad/Trans/State/Strict/StateSpec.hs b/test/Parameterized/Control/Monad/Trans/State/Strict/StateSpec.hs
-index 7dfd46c..4777c13 100644
---- a/test/Parameterized/Control/Monad/Trans/State/Strict/StateSpec.hs
-+++ b/test/Parameterized/Control/Monad/Trans/State/Strict/StateSpec.hs
-@@ -26,7 +26,7 @@ main = hspec spec
- manyIntMaybeState :: StateT (Many '[Int]) Maybe String
- manyIntMaybeState= do
-     s <- get
--    let r = fetch @Int s
-+    let r = grab @Int s
-     case r of
-         0 -> empty
-         r' -> do
-@@ -36,7 +36,7 @@ manyIntMaybeState= do
- manyBoolMaybeState :: StateT (Many '[Bool]) Maybe String
- manyBoolMaybeState = do
-     s <- get
--    let r = fetch @Bool s
-+    let r = grab @Bool s
-     case r of
-         False -> empty
-         r' -> do
diff --git a/nix/proto3-suite.nix b/nix/proto3-suite.nix
deleted file mode 100644
index ce96ae4..0000000
--- a/nix/proto3-suite.nix
+++ /dev/null
@@ -1,44 +0,0 @@
-{ mkDerivation, aeson, aeson-pretty, attoparsec, base
-, base64-bytestring, binary, bytestring, cereal, containers
-, contravariant, deepseq, doctest, fetchgit, filepath, foldl
-, generic-arbitrary, hashable, haskell-src
-, insert-ordered-containers, lens, lib, mtl, neat-interpolation
-, optparse-applicative, optparse-generic, parsec, parsers, pretty
-, pretty-show, proto3-wire, QuickCheck, quickcheck-instances
-, range-set-list, safe, swagger2, system-filepath, tasty
-, tasty-hunit, tasty-quickcheck, text, time, transformers, turtle
-, vector
-}:
-mkDerivation {
-  pname = "proto3-suite";
-  version = "0.4.3";
-  src = fetchgit {
-    url = "https://github.com/awakesecurity/proto3-suite.git";
-    sha256 = "0bjqczi6wddxv0n7qmfbrr19ajgq66xdkxx8vfcgbmv8ygma3vlw";
-    rev = "7af7d76dcf9cc71ddada3aa4a38abf46f65550ca";
-    fetchSubmodules = true;
-  };
-  isLibrary = true;
-  isExecutable = true;
-  enableSeparateDataOutput = true;
-  libraryHaskellDepends = [
-    aeson aeson-pretty attoparsec base base64-bytestring binary
-    bytestring cereal containers contravariant deepseq filepath foldl
-    hashable haskell-src insert-ordered-containers lens mtl
-    neat-interpolation parsec parsers pretty pretty-show proto3-wire
-    QuickCheck quickcheck-instances safe swagger2 system-filepath text
-    time transformers turtle vector
-  ];
-  executableHaskellDepends = [
-    base containers mtl optparse-applicative optparse-generic
-    proto3-wire range-set-list system-filepath text turtle
-  ];
-  testHaskellDepends = [
-    aeson attoparsec base base64-bytestring bytestring cereal
-    containers deepseq doctest generic-arbitrary mtl pretty-show
-    proto3-wire QuickCheck swagger2 tasty tasty-hunit tasty-quickcheck
-    text transformers turtle vector
-  ];
-  description = "A higher-level API to the proto3-wire library";
-  license = lib.licenses.asl20;
-}
diff --git a/nix/proto3-suite.patch b/nix/proto3-suite.patch
new file mode 100644
index 0000000..a2f0f71
--- /dev/null
+++ b/nix/proto3-suite.patch
@@ -0,0 +1,13 @@
+diff --git a/proto3-suite.cabal b/proto3-suite.cabal
+index 0898741..9959935 100644
+--- a/proto3-suite.cabal
++++ b/proto3-suite.cabal
+@@ -48,7 +48,7 @@ library
+   if flag(swagger)
+     exposed-modules:   Proto3.Suite.DotProto.Generate.Swagger
+                        Proto3.Suite.DotProto.Generate.Swagger.Wrappers
+-    build-depends:     swagger2 >=2.1.6 && <2.8
++    build-depends:     swagger2 >=2.1.6 && <3
+     cpp-options:       -DSWAGGER
+     if flag(swagger-wrapper-format)
+       hs-source-dirs:  src/swagger-wrapper-format
diff --git a/nix/proto3-wire.nix b/nix/proto3-wire.nix
deleted file mode 100644
index 4017955..0000000
--- a/nix/proto3-wire.nix
+++ /dev/null
@@ -1,21 +0,0 @@
-{ mkDerivation, base, bytestring, cereal, containers, deepseq
-, doctest, ghc-prim, hashable, lib, parameterized, primitive
-, QuickCheck, safe, tasty, tasty-hunit, tasty-quickcheck, text
-, transformers, unordered-containers, vector
-}:
-mkDerivation {
-  pname = "proto3-wire";
-  version = "1.2.2";
-  sha256 = "8d409536a89a0187f0576711966d2ef45d43acab7b6a3a1c5ee12f6d01adbfb9";
-  libraryHaskellDepends = [
-    base bytestring cereal containers deepseq ghc-prim hashable
-    parameterized primitive QuickCheck safe text transformers
-    unordered-containers vector
-  ];
-  testHaskellDepends = [
-    base bytestring cereal doctest QuickCheck tasty tasty-hunit
-    tasty-quickcheck text transformers vector
-  ];
-  description = "A low-level implementation of the Protocol Buffers (version 3) wire format";
-  license = lib.licenses.asl20;
-}
diff --git a/nix/proto3-wire.patch b/nix/proto3-wire.patch
new file mode 100644
index 0000000..7c88993
--- /dev/null
+++ b/nix/proto3-wire.patch
@@ -0,0 +1,13 @@
+diff --git a/proto3-wire.cabal b/proto3-wire.cabal
+index 6db123a..9d7c958 100644
+--- a/proto3-wire.cabal
++++ b/proto3-wire.cabal
+@@ -55,7 +55,7 @@ test-suite tests
+   build-depends:       base >=4.9 && <=5.0,
+                        bytestring >=0.10.6.0 && <0.11.0,
+                        cereal >= 0.5.1 && <0.6,
+-                       doctest >= 0.7.0 && <0.18,
++                       doctest >= 0.7.0 && <0.19,
+                        proto3-wire,
+                        QuickCheck >=2.8 && <3.0,
+                        tasty >= 0.11 && <1.5,
diff --git a/nixpkgs.nix b/nixpkgs.nix
index 1c22faf..8993d8b 100644
--- a/nixpkgs.nix
+++ b/nixpkgs.nix
@@ -1,12 +1,15 @@
 # Given a Git revision hash `<rev>`, you get the new SHA256 by running:
 #
-# ```bash
-# $ nix-prefetch-url "https://github.com/NixOS/nixpkgs/archive/<rev>.tar.gz"
+# ``` sh
+# nix-prefetch-url --unpack 'https://github.com/NixOS/nixpkgs/archive/<rev>.tar.gz'
 # ```
 #
 # The SHA256 will be printed as the last line of stdout.
 
-import (builtins.fetchTarball {
-    url    = "https://github.com/NixOS/nixpkgs/archive/dd9f73e7d34486b09b966738ace161e621a0480b.tar.gz";
-    sha256 = "0s674386v5b24a9fia26439gw9wsyhif85k2nzpxkp61293v3n3h";
-  })
+import (fetchTarball {
+  # Branch: release-22.05
+  # Date: 2022-07-28
+  # grpc.version: 1.46.3
+  url = "https://github.com/NixOS/nixpkgs/archive/76e54678eb7fd4d9bfda9b13858a6a8df4501582.tar.gz";
+  sha256 = "1zqjzdl9wy17v39nb7z7hsws4ydbqvjsm326x3cgh47m3d24kfhr";
+})
diff --git a/release.nix b/release.nix
index 40df463..2d2de13 100644
--- a/release.nix
+++ b/release.nix
@@ -68,41 +68,44 @@
 let
   overlay = pkgsNew: pkgsOld: {
 
-    grpc = pkgsNew.callPackage ./nix/grpc.nix { };
-
     haskellPackages = pkgsOld.haskellPackages.override {
       overrides = haskellPackagesNew: haskellPackagesOld: rec {
-        parameterized =
-          pkgsNew.haskell.lib.overrideCabal
-          haskellPackagesOld.parameterized
-          (old: {
-            broken = false;
-            patches = (old.patches or [ ]) ++ [ ./nix/parameterized.patch ];
-          });
 
-        haskell-src =
-          haskellPackagesNew.callHackage "haskell-src" "1.0.3.1" {};
+        data-diverse =
+          pkgsNew.lib.pipe haskellPackagesOld.data-diverse [
+            (haskellAddPatch pkgsNew ./nix/data-diverse.patch)
+            (haskellMarkUnbroken pkgsNew)
+          ];
 
         proto3-wire =
-          haskellPackagesNew.callPackage ./nix/proto3-wire.nix { };
+          pkgsNew.lib.pipe haskellPackagesOld.proto3-wire [
+            (haskellAddPatch pkgsNew ./nix/proto3-wire.patch)
+          ];
 
         proto3-suite =
-          pkgsNew.haskell.lib.dontCheck
-            (haskellPackagesNew.callPackage ./nix/proto3-suite.nix {});
+          pkgsNew.lib.pipe haskellPackagesOld.proto3-suite [
+            (haskellAddPatch pkgsNew ./nix/proto3-suite.patch)
+            pkgsNew.haskell.lib.dontCheck # 4 out of 74 tests failed
+          ];
 
         grpc-haskell-core =
-          pkgsNew.haskell.lib.buildFromSdist (pkgsNew.usesGRPC
-            (haskellPackagesNew.callCabal2nix "grpc-haskell-core" ./core {
-                 gpr = pkgsNew.grpc;
-               }
-            )
-          );
+          pkgsNew.lib.pipe (
+            haskellPackagesNew.callCabal2nix "grpc-haskell-core" ./core {
+              gpr = pkgsNew.grpc;
+            }
+          ) [
+            pkgsNew.usesGRPC
+            pkgsNew.haskell.lib.buildFromSdist
+          ];
 
         grpc-haskell-no-tests =
-          pkgsNew.haskell.lib.buildFromSdist (pkgsNew.usesGRPC
-            (pkgsNew.haskell.lib.dontCheck
-              (haskellPackagesNew.callCabal2nix "grpc-haskell" ./. { })
-            ));
+          pkgsNew.lib.pipe (
+            haskellPackagesNew.callCabal2nix "grpc-haskell" ./. { }
+          ) [
+            pkgsNew.haskell.lib.dontCheck
+            pkgsNew.usesGRPC
+            pkgsNew.haskell.lib.buildFromSdist
+          ];
 
         grpc-haskell =
           pkgsNew.usesGRPC
@@ -207,8 +210,20 @@ let
             '';
         }
       );
+
+    # Fix this error when entering a nix-shell:
+    # error: mox-0.7.8 not supported for interpreter python2.7
+    python = pkgsNew.python3;
   };
 
+  haskellAddPatch = pkgs: patchFile:
+    pkgs.lib.flip pkgs.haskell.lib.overrideCabal (old: {
+      patches = (old.patches or [ ]) ++ [ patchFile ];
+    });
+
+  haskellMarkUnbroken = pkgs:
+    pkgs.lib.flip pkgs.haskell.lib.overrideCabal (old: { broken = false; });
+
   overlays = [ overlay ];
 
   config  = { };
@@ -218,6 +233,21 @@ let
   darwinPkgs = nixpkgs { inherit config overlays; system = "x86_64-darwin"; };
         pkgs = nixpkgs { inherit config overlays; };
 
+  shell = pkgs.haskellPackages.shellFor {
+    name = "gRPC-haskell-shell";
+    withHoogle = true;
+
+    packages = p: [
+      p.grpc-haskell-core
+      p.grpc-haskell
+    ];
+
+    buildInputs = [
+      pkgs.cabal-install
+      pkgs.grpc
+    ];
+  };
+
 in
   {
     grpc-haskell-core-linux    =  linuxPkgs.haskellPackages.grpc-haskell-core;
@@ -234,6 +264,6 @@ in
 
     grpc                       =       pkgs.grpc;
 
-    inherit pkgs config overlay;
+    inherit pkgs config overlay shell;
     inherit (pkgs) test-grpc-haskell;
   }