diff --git a/mix.exs b/mix.exs
index 87084e9..bc32ea9 100644
--- a/mix.exs
+++ b/mix.exs
@@ -26,7 +26,7 @@ defmodule Cryptopunk.MixProject do
   defp deps do
     [
       {:ex_keccak, "~> 0.7.5"},
-      {:ex_pbkdf2, "~> 0.8.1"},
+      {:ex_pbkdf2, "~> 0.8.2"},
       {:ex_secp256k1, "~> 0.7.3"},
       {:ex_bech32, "~> 0.5.1"},
       {:ex_base58, "~> 0.6.2"},
diff --git a/mix.lock b/mix.lock
index 86a9fa0..cc05c96 100644
--- a/mix.lock
+++ b/mix.lock
@@ -9,7 +9,7 @@
   "ex_bech32": {:hex, :ex_bech32, "0.5.1", "7adbd9969ba06c2f8426d0692bc0a603c44e84c39f7fab46446191fde46b17fb", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.6", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "ccf16f7030dc6d652fbae8de77c31b5781bdda6492f12c32f604ef8e8e944895"},
   "ex_doc": {:hex, :ex_doc, "0.31.2", "8b06d0a5ac69e1a54df35519c951f1f44a7b7ca9a5bb7a260cd8a174d6322ece", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.1", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "317346c14febaba9ca40fd97b5b5919f7751fb85d399cc8e7e8872049f37e0af"},
   "ex_keccak": {:hex, :ex_keccak, "0.7.5", "f3b733173510d48ae9a1ea1de415e694b2651f35c787e63f33b5ed0013fbfd35", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.7", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "8a5e1cb7f96fff5e480ff6a121477b90c4fd8c150984086dffd98819f5d83763"},
-  "ex_pbkdf2": {:hex, :ex_pbkdf2, "0.8.1", "0abba1cce630954b2fa0163836f255dd881aa43bd5e779da74be51a997387d52", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.6", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "5b2e38cb04cc3187670f4a1092969f89fe731fb704beddc437e197eff373077e"},
+  "ex_pbkdf2": {:hex, :ex_pbkdf2, "0.8.2", "da44bd83af7d25f6e23ca43d0223077b08b5d60b17b998e66a781867b7e4a7ac", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.7", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "a55334fb472c42fc51d215f52aa4ce02d297f3dafed4b7a3d4bfd366ac2719d4"},
   "ex_secp256k1": {:hex, :ex_secp256k1, "0.7.3", "489b6fd57fab5a7259ace927d8cb5171aad835e9c7279c2a859a0483cb069415", [:mix], [{:rustler, ">= 0.0.0", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.7", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "ea63159442f4d8143166cd1507da03edc43216d6e7c6bac4b416bdce04f0daa8"},
   "file_system": {:hex, :file_system, "1.0.0", "b689cc7dcee665f774de94b5a832e578bd7963c8e637ef940cd44327db7de2cd", [:mix], [], "hexpm", "6752092d66aec5a10e662aefeed8ddb9531d79db0bc145bb8c40325ca1d8536d"},
   "jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},