diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9c7940b..adb1190 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -26,7 +26,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        nif: ["2.16", "2.15"]
+        nif: ["2.15"]
         job:
           - { target: arm-unknown-linux-gnueabihf , os: ubuntu-20.04 , use-cross: true }
           - { target: aarch64-unknown-linux-gnu   , os: ubuntu-20.04 , use-cross: true }
diff --git a/mix.lock b/mix.lock
index e8f6ad0..42de2c9 100644
--- a/mix.lock
+++ b/mix.lock
@@ -7,7 +7,7 @@
   "makeup_elixir": {:hex, :makeup_elixir, "0.16.2", "627e84b8e8bf22e60a2579dad15067c755531fea049ae26ef1020cad58fe9578", [: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", "41193978704763f6bbe6cc2758b84909e62984c7752b3784bd3c218bb341706b"},
   "makeup_erlang": {:hex, :makeup_erlang, "0.1.5", "e0ff5a7c708dda34311f7522a8758e23bfcd7d8d8068dc312b5eb41c6fd76eba", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "94d2e986428585a21516d7d7149781480013c56e30c6a233534bedf38867a59a"},
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.0", "51f9b613ea62cfa97b25ccc2c1b4216e81df970acd8e16e8d1bdc58fef21370d", [:mix], [], "hexpm", "9c565862810fb383e9838c1dd2d7d2c437b3d13b267414ba6af33e50d2d1cf28"},
-  "rustler": {:hex, :rustler, "0.30.0", "cefc49922132b072853fa9b0ca4dc2ffcb452f68fb73b779042b02d545e097fb", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.6", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "9ef1abb6a7dda35c47cfc649e6a5a61663af6cf842a55814a554a84607dee389"},
+  "rustler": {:hex, :rustler, "0.31.0", "7e5eefe61e6e6f8901e5aa3de60073d360c6320d9ec363027b0197297b80c46a", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.6", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "99e378459bfb9c3bda6d3548b2b3bc6f9ad97f728f76bdbae7bf5c770a4f8abd"},
   "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/html5ever_nif/.cargo/config b/native/html5ever_nif/.cargo/config.toml
similarity index 100%
rename from native/html5ever_nif/.cargo/config
rename to native/html5ever_nif/.cargo/config.toml
diff --git a/native/html5ever_nif/Cargo.lock b/native/html5ever_nif/Cargo.lock
index 2e85df3..9ce1bdb 100644
--- a/native/html5ever_nif/Cargo.lock
+++ b/native/html5ever_nif/Cargo.lock
@@ -309,9 +309,9 @@ checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
 
 [[package]]
 name = "rustler"
-version = "0.29.1"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0884cb623b9f43d3e2c51f9071c5e96a5acf3e6e6007866812884ff0cb983f1e"
+checksum = "a75d458f38f550976d0e4b347ca57241c192019777e46af7af73b27783287088"
 dependencies = [
  "lazy_static",
  "rustler_codegen",
@@ -320,9 +320,9 @@ dependencies = [
 
 [[package]]
 name = "rustler_codegen"
-version = "0.29.1"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50e277af754f2560cf4c4ebedb68c1a735292fb354505c6133e47ec406e699cf"
+checksum = "dbd46408f51c0ca6a68dc36aa4f90e3554960bd1b7cc513e6ff2ccad7dd92aff"
 dependencies = [
  "heck",
  "proc-macro2",
diff --git a/native/html5ever_nif/Cargo.toml b/native/html5ever_nif/Cargo.toml
index 87eea6b..d1ea174 100644
--- a/native/html5ever_nif/Cargo.toml
+++ b/native/html5ever_nif/Cargo.toml
@@ -10,7 +10,8 @@ path = "src/lib.rs"
 crate-type = ["cdylib"]
 
 [dependencies]
-rustler = "0.29.1"
+# See the Precompilation guide for details about the features: https://github.com/philss/rustler_precompiled/blob/main/PRECOMPILATION_GUIDE.md
+rustler = { version = "0.31", default-features = false, features = ["derive", "nif_version_2_15"] }
 
 html5ever = "0.26"
 markup5ever = "0.11"
diff --git a/native/html5ever_nif/Cross.toml b/native/html5ever_nif/Cross.toml
deleted file mode 100644
index 8ba543c..0000000
--- a/native/html5ever_nif/Cross.toml
+++ /dev/null
@@ -1,4 +0,0 @@
-[build.env]
-passthrough = [
-  "RUSTLER_NIF_VERSION"
-]