diff --git a/.github/workflows/ci-version.yml b/.github/workflows/ci-version.yml
index d713ff4..dc1e643 100644
--- a/.github/workflows/ci-version.yml
+++ b/.github/workflows/ci-version.yml
@@ -64,7 +64,7 @@ jobs:
           - macos-latest
           - windows-latest
         toolchain:
-          - 1.69
+          - "1.70"
         features:
           -
           - --features u128
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b15e712..5a68aaf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -80,7 +80,7 @@ jobs:
           - macos-latest
           - windows-latest
         toolchain:
-          - 1.69
+          - "1.70"
         features:
           -
           - --features u128
diff --git a/Cargo.toml b/Cargo.toml
index a924330..4dfe86f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "byte-unit"
 version = "5.1.5"
 authors = ["Magic Len <len@magiclen.org>"]
 edition = "2021"
-rust-version = "1.69"
+rust-version = "1.70"
 repository = "https://github.com/magiclen/byte-unit"
 homepage = "https://magiclen.org/byte-unit"
 keywords = ["byte", "unit", "kb", "mb", "gb"]
diff --git a/src/bit/mod.rs b/src/bit/mod.rs
index 401e40a..cb667bb 100644
--- a/src/bit/mod.rs
+++ b/src/bit/mod.rs
@@ -698,6 +698,7 @@ impl Bit {
     /// # Points to Note
     ///
     /// * If the calculated bit is too large, this function will return `None`.
+    #[allow(unexpected_cfgs)]
     #[inline]
     pub const fn multiply(self, rhs: usize) -> Option<Bit> {
         #[cfg(feature = "u128")]
@@ -743,6 +744,7 @@ impl Bit {
     ///
     /// * If the input right-hand side is zero, this function will return `None`.
     /// * The result will be rounded down.
+    #[allow(unexpected_cfgs)]
     #[inline]
     pub const fn divide(self, rhs: usize) -> Option<Bit> {
         #[cfg(feature = "u128")]
diff --git a/src/byte/mod.rs b/src/byte/mod.rs
index 9d3f87b..3c2622e 100644
--- a/src/byte/mod.rs
+++ b/src/byte/mod.rs
@@ -715,6 +715,7 @@ impl Byte {
     /// # Points to Note
     ///
     /// * If the calculated byte is too large, this function will return `None`.
+    #[allow(unexpected_cfgs)]
     #[inline]
     pub const fn multiply(self, rhs: usize) -> Option<Byte> {
         #[cfg(feature = "u128")]
@@ -760,6 +761,7 @@ impl Byte {
     ///
     /// * If the input right-hand side is zero, this function will return `None`.
     /// * The result will be rounded down.
+    #[allow(unexpected_cfgs)]
     #[inline]
     pub const fn divide(self, rhs: usize) -> Option<Byte> {
         #[cfg(feature = "u128")]
diff --git a/src/errors.rs b/src/errors.rs
index f753e64..a37323c 100644
--- a/src/errors.rs
+++ b/src/errors.rs
@@ -111,7 +111,6 @@ impl Display for UnitParseError {
     }
 }
 
-#[cfg(any(feature = "byte", feature = "bit"))]
 #[cfg(feature = "std")]
 impl Error for UnitParseError {}
 
diff --git a/src/lib.rs b/src/lib.rs
index 51badb7..082111b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -204,9 +204,6 @@ features = ["rocket"]
 #![cfg_attr(not(feature = "std"), no_std)]
 #![cfg_attr(docsrs, feature(doc_auto_cfg))]
 
-#[cfg(feature = "serde")]
-#[macro_use]
-extern crate alloc;
 #[cfg(feature = "rust_decimal")]
 pub extern crate rust_decimal;