diff --git a/mix.exs b/mix.exs
index 40f58ab..eb0c4bd 100644
--- a/mix.exs
+++ b/mix.exs
@@ -69,8 +69,8 @@ defmodule FastRSS.MixProject do
   defp deps do
     [
       # rust
-      {:rustler, "~> 0.29.0", optional: true},
-      {:rustler_precompiled, "~> 0.6"},
+      {:rustler, "~> 0.33.0", optional: true},
+      {:rustler_precompiled, "~> 0.7"},
 
       # docs
       {:ex_doc, ">= 0.0.0", only: :dev, runtime: false}
diff --git a/mix.lock b/mix.lock
index f55d64a..fdad27d 100644
--- a/mix.lock
+++ b/mix.lock
@@ -1,5 +1,5 @@
 %{
-  "castore": {:hex, :castore, "1.0.3", "7130ba6d24c8424014194676d608cb989f62ef8039efd50ff4b3f33286d06db8", [:mix], [], "hexpm", "680ab01ef5d15b161ed6a95449fac5c6b8f60055677a8e79acf01b27baa4390b"},
+  "castore": {:hex, :castore, "1.0.7", "b651241514e5f6956028147fe6637f7ac13802537e895a724f90bf3e36ddd1dd", [:mix], [], "hexpm", "da7785a4b0d2a021cd1292a60875a784b6caef71e76bf4917bdee1f390455cf5"},
   "earmark": {:hex, :earmark, "1.4.3", "364ca2e9710f6bff494117dbbd53880d84bebb692dafc3a78eb50aa3183f2bfd", [:mix], [], "hexpm", "8cf8a291ebf1c7b9539e3cddb19e9cef066c2441b1640f13c34c1d3cfc825fec"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.33", "3c3fd9673bb5dcc9edc28dd90f50c87ce506d1f71b70e3de69aa8154bc695d44", [:mix], [], "hexpm", "2d526833729b59b9fdb85785078697c72ac5e5066350663e5be6a1182da61b8f"},
   "ex_doc": {:hex, :ex_doc, "0.30.6", "5f8b54854b240a2b55c9734c4b1d0dd7bdd41f71a095d42a70445c03cf05a281", [:mix], [{:earmark_parser, "~> 1.4.31", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "bd48f2ddacf4e482c727f9293d9498e0881597eae6ddc3d9562bd7923375109f"},
@@ -8,7 +8,7 @@
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.1", "cc9e3ca312f1cfeccc572b37a09980287e243648108384b97ff2b76e505c3555", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "e127a341ad1b209bd80f7bd1620a15693a9908ed780c3b763bccf7d200c767c6"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.2", "ad87296a092a46e03b7e9b0be7631ddcf64c790fa68a9ef5323b6cbb36affc72", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f3f5a1ca93ce6e092d92b6d9c049bcda58a3b617a8d888f8e7231c85630e8108"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.3.1", "2c54013ecf170e249e9291ed0a62e5832f70a476c61da16f6aac6dca0189f2af", [:mix], [], "hexpm", "2682e3c0b2eb58d90c6375fc0cc30bc7be06f365bf72608804fb9cffa5e1b167"},
-  "rustler": {:hex, :rustler, "0.29.1", "880f20ae3027bd7945def6cea767f5257bc926f33ff50c0d5d5a5315883c084d", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.6", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "109497d701861bfcd26eb8f5801fe327a8eef304f56a5b63ef61151ff44ac9b6"},
-  "rustler_precompiled": {:hex, :rustler_precompiled, "0.6.3", "f838d94bc35e1844973ee7266127b156fdc962e9e8b7ff666c8fb4fed7964d23", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: true]}], "hexpm", "e18ecca3669a7454b3a2be75ae6c3ef01d550bc9a8cf5fbddcfff843b881d7c6"},
+  "rustler": {:hex, :rustler, "0.33.0", "4a5b0a7a7b0b51549bea49947beff6fae9bc5d5326104dcd4531261e876b5619", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.6", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "7c4752728fee59a815ffd20c3429c55b644041f25129b29cdeb5c470b80ec5fd"},
+  "rustler_precompiled": {:hex, :rustler_precompiled, "0.7.1", "ecadf02cc59a0eccbaed6c1937303a5827fbcf60010c541595e6d3747d3d0f9f", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: true]}], "hexpm", "b9e4657b99a1483ea31502e1d58c464bedebe9028808eda45c3a429af4550c66"},
   "toml": {:hex, :toml, "0.7.0", "fbcd773caa937d0c7a02c301a1feea25612720ac3fa1ccb8bfd9d30d822911de", [:mix], [], "hexpm", "0690246a2478c1defd100b0c9b89b4ea280a22be9a7b313a8a058a2408a2fa70"},
 }
diff --git a/native/fastrss/Cargo.lock b/native/fastrss/Cargo.lock
index cf1981b..e56fe1a 100644
--- a/native/fastrss/Cargo.lock
+++ b/native/fastrss/Cargo.lock
@@ -78,9 +78,9 @@ dependencies = [
 
 [[package]]
 name = "heck"
-version = "0.4.1"
+version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "95505c38b4572b2d910cecb0281560f54b440a19336cbbcb27bf6ce6adc6f5a8"
+checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
 [[package]]
 name = "itoa"
@@ -178,20 +178,19 @@ dependencies = [
 
 [[package]]
 name = "rustler"
-version = "0.29.1"
+version = "0.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0884cb623b9f43d3e2c51f9071c5e96a5acf3e6e6007866812884ff0cb983f1e"
+checksum = "45d51ae0239c57c3a3e603dd855ace6795078ef33c95c85d397a100ac62ed352"
 dependencies = [
- "lazy_static",
  "rustler_codegen",
  "rustler_sys",
 ]
 
 [[package]]
 name = "rustler_codegen"
-version = "0.29.1"
+version = "0.33.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50e277af754f2560cf4c4ebedb68c1a735292fb354505c6133e47ec406e699cf"
+checksum = "27061f1a2150ad64717dca73902678c124b0619b0d06563294df265bc84759e1"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -201,9 +200,9 @@ dependencies = [
 
 [[package]]
 name = "rustler_sys"
-version = "2.3.1"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a7c0740e5322b64e2b952d8f0edce5f90fcf6f6fe74cca3f6e78eb3de5ea858"
+checksum = "2062df0445156ae93cf695ef38c00683848d956b30507592143c01fe8fb52fda"
 dependencies = [
  "regex",
  "unreachable",
@@ -258,7 +257,7 @@ dependencies = [
 [[package]]
 name = "serde_rustler"
 version = "0.1.0"
-source = "git+https://github.com/avencera/serde_rustler.git?branch=rustler-0-29#a8824aa261d3535bca2b248a411ac0fab9c49071"
+source = "git+https://github.com/avencera/serde_rustler.git?branch=master#e2cc53cf59ec98ace515697f10fbc6e93659fdc5"
 dependencies = [
  "lazy_static",
  "rustler",
diff --git a/native/fastrss/Cargo.toml b/native/fastrss/Cargo.toml
index cc7f55c..616d8e6 100644
--- a/native/fastrss/Cargo.toml
+++ b/native/fastrss/Cargo.toml
@@ -13,9 +13,9 @@ path = "src/lib.rs"
 rss = {version = "2.0", features = ["serde"], default-features = false }
 atom_syndication = { version = "0.12", features = ["with-serde"], default-features = false }
 
-rustler = "0.29"
+rustler = "0.33"
 
 serde = "1.0"
 serde-transcode = "1.1"
 serde_json = "1.0"
-serde_rustler = { git = "https://github.com/avencera/serde_rustler.git", branch = "rustler-0-29" }
+serde_rustler = { git = "https://github.com/avencera/serde_rustler.git", branch = "master" }