diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index efc975dbd..52e712a11 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -62,7 +62,7 @@ jobs:
       # Remember to also update `--rust-target` in `openssl-sys/build/run_bindgen.rs`
       - uses: sfackler/actions/rustup@master
         with:
-          version: 1.56.0
+          version: 1.63.0
       - run: echo "version=$(rustc --version)" >> $GITHUB_OUTPUT
         id: rust-version
       - uses: actions/cache@v4
@@ -72,8 +72,6 @@ jobs:
           restore-keys: |
             index-${{ runner.os }}-
       - run: cargo generate-lockfile
-      - run: |
-          cargo update -p cc --precise 1.0.94
       - uses: actions/cache@v4
         with:
           path: ~/.cargo/registry/cache
diff --git a/openssl-errors/Cargo.toml b/openssl-errors/Cargo.toml
index 5285b266e..24f724678 100644
--- a/openssl-errors/Cargo.toml
+++ b/openssl-errors/Cargo.toml
@@ -2,12 +2,13 @@
 name = "openssl-errors"
 version = "0.2.0"
 authors = ["Steven Fackler <sfackler@gmail.com>"]
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Custom error library support for the openssl crate."
 repository = "https://github.com/sfackler/rust-openssl"
 readme = "README.md"
 categories = ["api-bindings"]
+rust-version = "1.63.0"
 
 [dependencies]
 cfg-if = "1.0"
diff --git a/openssl-macros/Cargo.toml b/openssl-macros/Cargo.toml
index 90abfdfa2..40134616b 100644
--- a/openssl-macros/Cargo.toml
+++ b/openssl-macros/Cargo.toml
@@ -1,10 +1,11 @@
 [package]
 name = "openssl-macros"
 version = "0.1.1"
-edition = "2018"
+edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "Internal macros used by the openssl crate."
 repository = "https://github.com/sfackler/rust-openssl"
+rust-version = "1.63.0"
 
 [lib]
 proc-macro = true
diff --git a/openssl-sys/Cargo.toml b/openssl-sys/Cargo.toml
index 131ebe684..7ec1038dc 100644
--- a/openssl-sys/Cargo.toml
+++ b/openssl-sys/Cargo.toml
@@ -12,7 +12,8 @@ readme = "README.md"
 categories = ["cryptography", "external-ffi-bindings"]
 links = "openssl"
 build = "build/main.rs"
-edition = "2018"
+edition = "2021"
+rust-version = "1.63.0"
 
 [features]
 vendored = ['openssl-src']
@@ -23,7 +24,7 @@ libc = "0.2"
 bssl-sys = { version = "0.1.0", optional = true }
 
 [build-dependencies]
-bindgen = { version = "0.65.0", optional = true, features = ["experimental"] }
+bindgen = { version = "0.69.0", optional = true, features = ["experimental"] }
 cc = "1.0.61"
 openssl-src = { version = "300.2.0", optional = true, features = ["legacy"] }
 pkg-config = "0.3.9"
diff --git a/openssl/Cargo.toml b/openssl/Cargo.toml
index cc8ef0acc..85426ad32 100644
--- a/openssl/Cargo.toml
+++ b/openssl/Cargo.toml
@@ -8,7 +8,8 @@ repository = "https://github.com/sfackler/rust-openssl"
 readme = "README.md"
 keywords = ["crypto", "tls", "ssl", "dtls"]
 categories = ["cryptography", "api-bindings"]
-edition = "2018"
+edition = "2021"
+rust-version = "1.63.0"
 
 # these are deprecated and don't do anything anymore
 [features]