diff --git a/Cargo.toml b/Cargo.toml
index e232eee..c566515 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,9 +12,9 @@ repository = "https://github.com/rp-rs/pio-rs"
 members = ["pio-proc", "pio-parser"]
 
 [dependencies]
-arrayvec = { version = "0.7", default_features = false }
+arrayvec = { version = "0.7", default-features = false }
 paste = "1.0"
-num_enum = { version = "0.7", default_features = false }
+num_enum = { version = "0.7", default-features = false }
 
 [dev-dependencies]
 test-generator = "0.3.0"
diff --git a/pio-parser/Cargo.toml b/pio-parser/Cargo.toml
index e85b71c..f65fe77 100644
--- a/pio-parser/Cargo.toml
+++ b/pio-parser/Cargo.toml
@@ -16,4 +16,4 @@ pio = { path = "..", version = "0.2.1" }
 lalrpop = "0.19.6"
 # This is only here to work around https://github.com/lalrpop/lalrpop/issues/750
 # It should be removed once that workaround is no longer needed.
-regex-syntax = { version = "0.6", default_features = false, features = ["unicode"] }
+regex-syntax = { version = "0.6", default-features = false, features = ["unicode"] }
diff --git a/pio-proc/Cargo.toml b/pio-proc/Cargo.toml
index ed79663..1cad892 100644
--- a/pio-proc/Cargo.toml
+++ b/pio-proc/Cargo.toml
@@ -22,4 +22,4 @@ pio-parser = { path = "../pio-parser", version = "0.2.0" }
 lalrpop-util = "0.19.6"
 # This is only here to work around https://github.com/lalrpop/lalrpop/issues/750
 # It should be removed once that workaround is no longer needed.
-regex-syntax = { version = "0.6", default_features = false, features = ["unicode"] }
+regex-syntax = { version = "0.6", default-features = false, features = ["unicode"] }
diff --git a/src/lib.rs b/src/lib.rs
index f4c5940..76305a3 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -599,7 +599,7 @@ impl<const PROGRAM_SIZE: usize> Assembler<PROGRAM_SIZE> {
     /// Create a new unbound Label.
     pub fn label(&mut self) -> Label {
         Label {
-            state: LabelState::Unbound(core::u8::MAX),
+            state: LabelState::Unbound(u8::MAX),
         }
     }
 
@@ -616,7 +616,7 @@ impl<const PROGRAM_SIZE: usize> Assembler<PROGRAM_SIZE> {
             LabelState::Bound(_) => panic!("cannot bind label twice"),
             LabelState::Unbound(mut patch) => {
                 let resolved_address = self.instructions.len() as u8;
-                while patch != core::u8::MAX {
+                while patch != u8::MAX {
                     // SAFETY: patch points to the next instruction to patch
                     let instr = unsafe { self.instructions.get_unchecked_mut(patch as usize) };
                     if let InstructionOperands::JMP { address, .. } = &mut instr.operands {