diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e3c5b1e..c0aaa97 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
     strategy:
       matrix:
         target:
-          - wasm32-wasi
+          - wasm32-wasip1
           - thumbv6m-none-eabi
           - thumbv7em-none-eabihf
     steps:
diff --git a/Cargo.lock b/Cargo.lock
index 195723b..b2cea80 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,16 +1,6 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
-version = 3
-
-[[package]]
-name = "ff"
-version = "0.14.0-pre.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d42dd26f5790eda47c1a2158ea4120e32c35ddc9a7743c98a292accc01b54ef3"
-dependencies = [
- "rand_core",
- "subtle",
-]
+version = 4
 
 [[package]]
 name = "memuse"
@@ -19,57 +9,48 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3d97bbf43eb4f088f8ca469930cde17fa036207c9a5e02ccc5107c4e8b17c964"
 
 [[package]]
-name = "proc-macro2"
-version = "1.0.95"
+name = "rand"
+version = "0.10.0-rc.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02b3e5e68a3a1a02aad3ec490a98007cbc13c37cbe84a3cd7b8e406d76e7f778"
+checksum = "be866deebbade98028b705499827ad6967c8bb1e21f96a2609913c8c076e9307"
 dependencies = [
- "unicode-ident",
+ "rand_core",
 ]
 
 [[package]]
-name = "quote"
-version = "1.0.40"
+name = "rand_core"
+version = "0.10.0-rc-2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1885c039570dc00dcb4ff087a89e185fd56bae234ddc7f056a945bf36467248d"
-dependencies = [
- "proc-macro2",
-]
+checksum = "104a23e4e8b77312a823b6b5613edbac78397e2f34320bc7ac4277013ec4478e"
 
 [[package]]
-name = "rand"
-version = "0.9.0"
+name = "rand_xorshift"
+version = "0.5.0-rc.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3779b94aeb87e8bd4e834cee3650289ee9e0d5677f976ecdb6d219e5f4f6cd94"
+checksum = "436a253927905fba96fc027756937b9d20e8e654e2622a6192a8037c3340dc35"
 dependencies = [
  "rand_core",
- "zerocopy",
 ]
 
 [[package]]
-name = "rand_core"
-version = "0.9.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "99d9a13982dcf210057a8a78572b2217b667c3beacbf3a0d8b454f6f82837d38"
-
-[[package]]
-name = "rand_xorshift"
-version = "0.4.0"
+name = "rustcrypto-ff"
+version = "0.14.0-pre.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "513962919efc330f829edb2535844d1b912b0fbe2ca165d613e4e8788bb05a5a"
+checksum = "aa9cd37111549306f79b09aa2618e15b1e8241b7178c286821e3dd71579db4db"
 dependencies = [
  "rand_core",
+ "subtle",
 ]
 
 [[package]]
 name = "rustcrypto-group"
 version = "0.14.0-pre"
 dependencies = [
- "ff",
  "memuse",
  "rand",
  "rand_core",
  "rand_xorshift",
+ "rustcrypto-ff",
  "subtle",
 ]
 
@@ -78,40 +59,3 @@ name = "subtle"
 version = "2.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "13c2bddecc57b384dee18652358fb23172facb8a2c51ccc10d74c157bdea3292"
-
-[[package]]
-name = "syn"
-version = "2.0.100"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b09a44accad81e1ba1cd74a32461ba89dee89095ba17b32f5d03683b1b1fc2a0"
-dependencies = [
- "proc-macro2",
- "quote",
- "unicode-ident",
-]
-
-[[package]]
-name = "unicode-ident"
-version = "1.0.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a5f39404a5da50712a4c1eecf25e90dd62b613502b7e925fd4e4d19b5c96512"
-
-[[package]]
-name = "zerocopy"
-version = "0.8.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2586fea28e186957ef732a5f8b3be2da217d65c5969d4b1e17f973ebbe876879"
-dependencies = [
- "zerocopy-derive",
-]
-
-[[package]]
-name = "zerocopy-derive"
-version = "0.8.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a996a8f63c5c4448cd959ac1bab0aaa3306ccfd060472f85943ee0750f0169be"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
diff --git a/Cargo.toml b/Cargo.toml
index b954b3c..a276aad 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,7 +6,7 @@ authors = [
     "Jack Grigg <jack@z.cash>",
 ]
 edition = "2021"
-rust-version = "1.63"
+rust-version = "1.85"
 readme = "README.md"
 license = "MIT/Apache-2.0"
 
@@ -16,10 +16,10 @@ homepage = "https://github.com/RustCrypto/group"
 repository = "https://github.com/RustCrypto/group"
 
 [dependencies]
-ff = { version = "=0.14.0-pre.0", default-features = false }
-rand = { version = "0.9", optional = true, default-features = false }
-rand_core = { version = "0.9", default-features = false }
-rand_xorshift = { version = "0.4", optional = true }
+ff = { version = "=0.14.0-pre.0", package = "rustcrypto-ff", default-features = false }
+rand = { version = "0.10.0-rc.1", optional = true, default-features = false }
+rand_core = { version = "0.10.0-rc-2", default-features = false }
+rand_xorshift = { version = "0.5.0-rc.0", optional = true }
 subtle = { version = "2.2.1", default-features = false }
 
 # Crate for exposing the dynamic memory usage of the w-NAF structs.
diff --git a/README.md b/README.md
index 1c4c3cc..c3b4dc0 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ wider discussion.
 
 ## Minimum Supported Rust Version
 
-Requires Rust **1.63** or higher.
+Requires Rust **1.85** or higher.
 
 Minimum supported Rust version can be changed in the future, but it will be done with a
 minor version bump.
diff --git a/rust-toolchain.toml b/rust-toolchain.toml
index 3eebdfe..e22c344 100644
--- a/rust-toolchain.toml
+++ b/rust-toolchain.toml
@@ -1,3 +1,3 @@
 [toolchain]
-channel = "1.63.0"
-components = [ "clippy", "rustfmt" ]
+channel = "1.85.0"
+components = ["clippy", "rustfmt"]