diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 2761d8cb..4e44c962 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -8,11 +8,11 @@ on:
 env:
   RUST_BACKTRACE: 1
   toolchain_style: stable
-  toolchain_msrv: 1.57
+  toolchain_msrv: 1.63
   toolchain_h3_quinn_msrv: 1.63
-  toolchain_doc: nightly-2023-03-22
+  toolchain_doc: nightly-2023-10-21
   toolchain_lint: stable
-  toolchain_fuzz: nightly-2023-03-22
+  toolchain_fuzz: nightly-2023-10-21
 
 jobs:
   ci-pass:
diff --git a/h3-quinn/Cargo.toml b/h3-quinn/Cargo.toml
index c0b2291f..75d9658e 100644
--- a/h3-quinn/Cargo.toml
+++ b/h3-quinn/Cargo.toml
@@ -19,6 +19,6 @@ quinn = { version = "0.10", default-features = false, features = [
     "futures-io",
 ] }
 quinn-proto = { version = "0.10", default-features = false }
-tokio-util = { version = "0.7.7" }
-futures = { version = "0.3.27" }
-tokio = { version = "1.28", features = ["io-util"], default-features = false }
+tokio-util = { version = "0.7.9" }
+futures = { version = "0.3.28" }
+tokio = { version = "1", features = ["io-util"], default-features = false }
diff --git a/h3/Cargo.toml b/h3/Cargo.toml
index bf6a48e7..9d5ab518 100644
--- a/h3/Cargo.toml
+++ b/h3/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "h3"
 version = "0.0.2"
-rust-version = "1.57"
+rust-version = "1.63"
 authors = [
     "Sean McArthur <sean@seanmonstar.com>",
     "Jean-Christophe BEGUE <jc.begue@pm.me>",
@@ -28,8 +28,8 @@ futures-util = { version = "0.3", default-features = false, features = ["io"] }
 http = "0.2.9"
 tokio = { version = "1", features = ["sync"] }
 pin-project-lite = { version = "0.2", default_features = false }
-tracing = "0.1.37"
-fastrand = "1.9.0"
+tracing = "0.1.40"
+fastrand = "2.0.1"
 
 [dev-dependencies]
 assert_matches = "1.5.0"
@@ -41,7 +41,7 @@ quinn = { version = "0.10", default-features = false, features = [
     "ring",
 ] }
 quinn-proto = { version = "0.10", default-features = false }
-rcgen = "0.10"
+rcgen = "0.11.3"
 rustls = "0.21"
 tokio = { version = "1", features = ["rt", "macros", "io-util", "io-std"] }
 tracing-subscriber = { version = "0.3", default-features = false, features = [
@@ -51,5 +51,5 @@ tracing-subscriber = { version = "0.3", default-features = false, features = [
     "time",
     "tracing-log",
 ] }
-futures = { version = "0.3.27" }
-tokio-util = { version = "0.7.7" }
+futures = { version = "0.3.28" }
+tokio-util = { version = "0.7.9" }