diff --git a/.semaphore/semaphore.yml b/.semaphore/semaphore.yml
index 8978217..d88dd33 100644
--- a/.semaphore/semaphore.yml
+++ b/.semaphore/semaphore.yml
@@ -29,8 +29,11 @@ blocks:
         - name: "Build"
           matrix:
             - env_var: ELIXIR_VERSION
-              values: ["1.11.3"]
+              values: ["1.11.3", "1.12.1"]
+            - env_var: ERLANG_VERSION
+              values: ["23.3", "24.0"]
           commands:
+            - sem-version erlang $ERLANG_VERSION
             - sem-version elixir $ELIXIR_VERSION
             - sem-service start postgres
             - checkout
diff --git a/Dockerfile b/Dockerfile
index 9cb479d..8986725 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,8 +1,9 @@
-FROM hexpm/elixir:1.11.3-erlang-23.2.2-ubuntu-focal-20201008
+FROM hexpm/elixir:1.12.1-erlang-24.0.2-ubuntu-focal-20210325
 
 # Install debian packages
 RUN apt-get update
 RUN apt-get install --yes build-essential inotify-tools postgresql-client
+RUN apt-get install --yes git
 
 RUN mix local.hex --force
 RUN mix local.rebar --force
diff --git a/bin/test b/bin/test
index 0a27ec9..fc2f929 100755
--- a/bin/test
+++ b/bin/test
@@ -4,7 +4,10 @@
 #
 # This script contains all the test commands for this app, which will be run
 # on the continuous integration server.
+if [ "$ELIXIR_VERSION" != "1.11.3" ]; then
 MIX_ENV=test mix format --check-formatted || { echo 'Code was not formatted!'; exit 1; }
+fi
+
 MIX_ENV=test mix compile --force --warnings-as-errors || { echo 'Please fix all compiler warnings.'; exit 1; }
 
 if [ ! $CI ]; then
diff --git a/coveralls.json b/coveralls.json
index 16d1b54..1303d58 100644
--- a/coveralls.json
+++ b/coveralls.json
@@ -2,6 +2,7 @@
   "skip_files": [
     "lib/cloak_ecto.ex",
     "lib/cloak_ecto/migrator/custom_cursor.ex",
+    "lib/cloak_ecto/crypto.ex",
     "test/*"
   ]
-}
\ No newline at end of file
+}
diff --git a/guides/how_to/install.md b/guides/how_to/install.md
index f00ca84..ea532d3 100644
--- a/guides/how_to/install.md
+++ b/guides/how_to/install.md
@@ -6,7 +6,7 @@ This guide will walk you through installing `Cloak.Ecto` in your project.
 
 First, add `:cloak_ecto` to your dependencies in `mix.exs`:
 
-    {:cloak_ecto, "~> 1.0.1"}
+    {:cloak_ecto, "~> 1.3.0"}
 
 Run `mix deps.get` to fetch the dependency. Since `:cloak_ecto` relies
 on `:cloak`, the `:cloak` package will also be installed.
diff --git a/lib/cloak_ecto/crypto.ex b/lib/cloak_ecto/crypto.ex
new file mode 100644
index 0000000..1f8d316
--- /dev/null
+++ b/lib/cloak_ecto/crypto.ex
@@ -0,0 +1,16 @@
+defmodule Cloak.Ecto.Crypto do
+  @moduledoc false
+  @behaviour Cloak.Ecto.Crypto.Interface
+
+  if System.otp_release() >= "22" do
+    @impl Cloak.Ecto.Crypto.Interface
+    def hmac(algorithm, key, data) do
+      :crypto.mac(:hmac, algorithm, key, data)
+    end
+  else
+    @impl Cloak.Ecto.Crypto.Interface
+    def hmac(algorithm, key, data) do
+      :crypto.hmac(algorithm, key, data)
+    end
+  end
+end
diff --git a/lib/cloak_ecto/crypto/interface.ex b/lib/cloak_ecto/crypto/interface.ex
new file mode 100644
index 0000000..40b2301
--- /dev/null
+++ b/lib/cloak_ecto/crypto/interface.ex
@@ -0,0 +1,8 @@
+defmodule Cloak.Ecto.Crypto.Interface do
+  @moduledoc false
+  @type algorithm :: atom()
+  @type secret :: binary
+  @type value :: iodata
+
+  @callback hmac(atom(), secret, value) :: binary
+end
diff --git a/lib/cloak_ecto/types/hmac.ex b/lib/cloak_ecto/types/hmac.ex
index 5bf7d2b..7bbca71 100644
--- a/lib/cloak_ecto/types/hmac.ex
+++ b/lib/cloak_ecto/types/hmac.ex
@@ -102,6 +102,8 @@ defmodule Cloak.Ecto.HMAC do
     otp_app = Keyword.fetch!(opts, :otp_app)
 
     quote do
+      alias Cloak.Ecto.Crypto
+
       @behaviour Cloak.Ecto.HMAC
       @behaviour Ecto.Type
       @algorithms ~w[
@@ -142,7 +144,7 @@ defmodule Cloak.Ecto.HMAC do
 
       def dump(value) when is_binary(value) do
         config = build_config()
-        {:ok, :crypto.hmac(config[:algorithm], config[:secret], value)}
+        {:ok, Crypto.hmac(config[:algorithm], config[:secret], value)}
       end
 
       def dump(_value) do
diff --git a/lib/cloak_ecto/types/pbkdf2.ex b/lib/cloak_ecto/types/pbkdf2.ex
index 3cb8eaf..41d9a98 100644
--- a/lib/cloak_ecto/types/pbkdf2.ex
+++ b/lib/cloak_ecto/types/pbkdf2.ex
@@ -189,9 +189,7 @@ if Code.ensure_loaded?(:pbkdf2) do
             algo = inspect(config[:algorithm])
 
             raise Cloak.InvalidConfig,
-                  "#{algo} is an invalid hash algorithm for #{m}, must be in #{
-                    inspect(@algorithms)
-                  }"
+                  "#{algo} is an invalid hash algorithm for #{m}, must be in #{inspect(@algorithms)}"
           end
 
           unless is_integer(config[:iterations]) && config[:iterations] > 0 do
diff --git a/mix.exs b/mix.exs
index a49cf3a..051039c 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule Cloak.Ecto.MixProject do
   def project do
     [
       app: :cloak_ecto,
-      version: "1.1.1",
+      version: "1.3.0",
       elixir: "~> 1.7",
       start_permanent: Mix.env() == :prod,
       test_coverage: [tool: ExCoveralls],
@@ -35,9 +35,11 @@ defmodule Cloak.Ecto.MixProject do
 
   defp deps do
     [
-      {:cloak, "~> 1.0.0"},
+      {:cloak, "~> 1.1.1"},
       {:ecto, "~> 3.0"},
-      {:pbkdf2, "~> 2.0", optional: true},
+      # Must use a forked version of pbkdf2 to support Erlang 24
+      # See https://github.com/basho/erlang-pbkdf2/pull/12
+      {:pbkdf2, "~> 2.0", optional: true, github: "miniclip/erlang-pbkdf2"},
       {:ex_doc, ">= 0.0.0", only: :dev},
       {:excoveralls, ">= 0.0.0", only: :test},
       {:ecto_sql, ">= 0.0.0", only: [:dev, :test]},
diff --git a/mix.lock b/mix.lock
index 873bb2f..b3d952a 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,7 +1,7 @@
 %{
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
   "certifi": {:hex, :certifi, "2.5.3", "70bdd7e7188c804f3a30ee0e7c99655bc35d8ac41c23e12325f36ab449b70651", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm", "ed516acb3929b101208a9d700062d520f3953da3b6b918d866106ffa980e1c10"},
-  "cloak": {:hex, :cloak, "1.0.3", "af8acef9e08e744441e961921c95a660074f9689892e18445ad8a60d5059aa10", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}, {:pbkdf2, "~> 2.0", [hex: :pbkdf2, repo: "hexpm", optional: true]}], "hexpm", "130afd15b845f4cabb0be8df64ec93a59ff30657c539d454f7f747145c4e2452"},
+  "cloak": {:hex, :cloak, "1.1.1", "6f8f6674cacd3c504daf2aaeba8f9cde3ae8009ce01ff854dd3e92fbb7954c69", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "d440c4ea3a5a31baeaea4592b534dfdccc4ded0ee098b92955a5658cbe7be625"},
   "connection": {:hex, :connection, "1.1.0", "ff2a49c4b75b6fb3e674bfc5536451607270aac754ffd1bdfe175abe4a6d7a68", [:mix], [], "hexpm", "722c1eb0a418fbe91ba7bd59a47e28008a189d47e37e0e7bb85585a016b2869c"},
   "db_connection": {:hex, :db_connection, "2.3.1", "4c9f3ed1ef37471cbdd2762d6655be11e38193904d9c5c1c9389f1b891a3088e", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}], "hexpm", "abaab61780dde30301d840417890bd9f74131041afd02174cf4e10635b3a63f5"},
   "decimal": {:hex, :decimal, "2.0.0", "a78296e617b0f5dd4c6caf57c714431347912ffb1d0842e998e9792b5642d697", [:mix], [], "hexpm", "34666e9c55dea81013e77d9d87370fe6cb6291d1ef32f46a1600230b1d44f577"},
@@ -21,7 +21,7 @@
   "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.1.0", "3a6fca1550363552e54c216debb6a9e95bd8d32348938e13de5eda962c0d7f89", [:mix], [], "hexpm", "08eb32d66b706e913ff748f11694b17981c0b04a33ef470e33e11b3d3ac8f54b"},
   "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
-  "pbkdf2": {:hex, :pbkdf2, "2.0.0", "11c23279fded5c0027ab3996cfae77805521d7ef4babde2bd7ec04a9086cf499", [:rebar3], [], "hexpm", "1e793ce6fdb0576613115714deae9dfc1d1537eaba74f07efb36de139774488d"},
+  "pbkdf2": {:git, "https://github.com/miniclip/erlang-pbkdf2.git", "75ef2d829962349395c53b630e844a729e5d9c53", []},
   "postgrex": {:hex, :postgrex, "0.15.8", "f5e782bbe5e8fa178d5e3cd1999c857dc48eda95f0a4d7f7bd92a50e84a0d491", [:mix], [{:connection, "~> 1.0", [hex: :connection, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:decimal, "~> 1.5 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "698fbfacea34c4cf22c8281abeb5cf68d99628d541874f085520ab3b53d356fe"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
   "telemetry": {:hex, :telemetry, "0.4.2", "2808c992455e08d6177322f14d3bdb6b625fbcfd233a73505870d8738a2f4599", [:rebar3], [], "hexpm", "2d1419bd9dda6a206d7b5852179511722e2b18812310d304620c7bd92a13fcef"},
diff --git a/test/cloak_ecto/types/hmac_test.exs b/test/cloak_ecto/types/hmac_test.exs
index c5c8aca..752c7a0 100644
--- a/test/cloak_ecto/types/hmac_test.exs
+++ b/test/cloak_ecto/types/hmac_test.exs
@@ -1,6 +1,8 @@
 defmodule Cloak.Ecto.HMACTest do
   use ExUnit.Case
 
+  alias Cloak.Ecto.Crypto
+
   defmodule HMAC do
     use Cloak.Ecto.HMAC, otp_app: :cloak
 
@@ -46,7 +48,7 @@ defmodule Cloak.Ecto.HMACTest do
 
     test "hashes binaries" do
       assert {:ok, hash} = HMAC.dump("plaintext")
-      assert hash == :crypto.hmac(:sha512, "secret", "plaintext")
+      assert hash == Crypto.hmac(:sha512, "secret", "plaintext")
     end
 
     test "returns :error for all other types" do