diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 3894efc..6bd2f46 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -18,15 +18,18 @@ jobs:
       - uses: Swatinem/rust-cache@v2
       - run: cargo clippy --all-targets
       - run: cargo clippy --all-targets --all-features
+      - run: cargo clippy --all-targets --no-default-features
 
   clippy_msrv:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - run: rustup update && rustup override set 1.58.0 && rustup component add clippy
+      - run: rustup update && rustup override set 1.61.0 && rustup component add clippy && rustup toolchain install nightly
       - uses: Swatinem/rust-cache@v2
+      - run: cargo +nightly update -Z direct-minimal-versions && cargo update -p regex --precise 1.9.6
       - run: cargo clippy --all-targets -- -D warnings -D clippy::all
       - run: cargo clippy --all-targets --all-features -- -D warnings -D clippy::all
+      - run: cargo clippy --all-targets --no-default-features -- -D warnings -D clippy::all
 
   test:
     runs-on: ubuntu-latest
@@ -35,10 +38,9 @@ jobs:
       - run: rustup update
       - uses: Swatinem/rust-cache@v2
       - run: cargo build --all-features
-      - run: cargo test --verbose
-      - run: cargo test --verbose --all-features
-        env:
-          RUST_BACKTRACE: 1
+      - run: cargo test
+      - run: cargo test --all-features
+      - run: cargo test --no-default-features
 
   rustdoc:
     runs-on: ubuntu-latest
@@ -52,7 +54,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
-      - run: rustup update && rustup override set 1.58.0
+      - run: rustup update && rustup override set 1.61.0
       - uses: Swatinem/rust-cache@v2
       - run: cargo doc --all-features --no-deps
         env:
diff --git a/Cargo.toml b/Cargo.toml
index f566ab9..e4c1d11 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ description = """
 Simple and fast implementation of language tag normalization and validation
 """
 edition = "2018"
-rust-version = "1.58"
+rust-version = "1.61"
 
 [features]
 default = ["std"]
@@ -25,7 +25,7 @@ serialize = ["dep:serde"]
 serde = { version = "1", optional = true, default_features = false }
 
 [dev-dependencies]
-criterion = "0.4"
+criterion = ">=0.4,<0.6"
 serde_test = "1"
 
 [[bench]]
diff --git a/README.md b/README.md
index 933e8e0..40f72c7 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,11 @@ assert_eq!(language_tag.extension(), None);
 assert_eq!(language_tag.private_use_subtags().collect::<Vec<_>>(), vec!["test"]);
 ```
 
+It is also possible to use this crate in `no_std` (with `alloc`) by opting-out of the default `std` feature:
+```toml
+serde = { version = "*", default-features = false }
+```
+
 ## License
 
 This project is licensed under the MIT license ([LICENSE-MIT](LICENSE-MIT) or `<http://opensource.org/licenses/MIT>`).