diff --git a/Cargo.lock b/Cargo.lock
index cb19b3b..e8021c9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1612,7 +1612,7 @@ dependencies = [
  "serde",
  "serde_spanned",
  "toml_datetime",
- "winnow",
+ "winnow 0.3.6",
 ]
 
 [[package]]
@@ -1650,7 +1650,7 @@ dependencies = [
  "thiserror",
  "unicode-segmentation",
  "unicode-xid",
- "winnow",
+ "winnow 0.4.0",
 ]
 
 [[package]]
@@ -1833,7 +1833,7 @@ name = "varcon-core"
 version = "2.2.9"
 dependencies = [
  "enumflags2",
- "winnow",
+ "winnow 0.4.0",
 ]
 
 [[package]]
@@ -2057,9 +2057,18 @@ checksum = "447660ad36a13288b1db4d4248e857b510e8c3a225c822ba4fb748c0aafecffd"
 
 [[package]]
 name = "winnow"
-version = "0.3.3"
+version = "0.3.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "faf09497b8f8b5ac5d3bb4d05c0a99be20f26fd3d5f2db7b0716e946d5103658"
+checksum = "23d020b441f92996c80d94ae9166e8501e59c7bb56121189dc9eab3bd8216966"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "winnow"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "deac0939bd6e4f24ab5919fbf751c97a8cfc8543bb083a305ed5c0c10bb241d1"
 dependencies = [
  "memchr",
 ]
diff --git a/crates/typos/Cargo.toml b/crates/typos/Cargo.toml
index c0bef2d..e0c3e39 100644
--- a/crates/typos/Cargo.toml
+++ b/crates/typos/Cargo.toml
@@ -14,7 +14,7 @@ include.workspace = true
 [dependencies]
 anyhow = "1.0"
 thiserror = "1.0"
-winnow = "0.3.3"
+winnow = "0.4.0"
 unicode-xid = "0.2.4"
 once_cell = "1.17.1"
 serde = { version = "1.0", features = ["derive"] }
diff --git a/crates/typos/src/tokens.rs b/crates/typos/src/tokens.rs
index db08914..e49e0cf 100644
--- a/crates/typos/src/tokens.rs
+++ b/crates/typos/src/tokens.rs
@@ -142,7 +142,7 @@ mod parser {
         <T as Stream>::Slice: AsBStr + SliceLen + Default,
         <T as Stream>::Token: AsChar + Copy,
     {
-        preceded(ignore, identifier)(input)
+        preceded(ignore, identifier).parse_next(input)
     }
 
     fn identifier<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -155,7 +155,7 @@ mod parser {
         // `{XID_Continue}+` because XID_Continue is a superset of XID_Start and rather catch odd
         // or unexpected cases than strip off start characters to a word since we aren't doing a
         // proper word boundary parse
-        take_while1(is_xid_continue)(input)
+        take_while1(is_xid_continue).parse_next(input)
     }
 
     fn ignore<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -180,7 +180,8 @@ mod parser {
             c_escape,
             printf,
             other,
-        )))(input)
+        )))
+        .parse_next(input)
     }
 
     fn sep1<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -192,7 +193,8 @@ mod parser {
         alt((
             one_of(|c| !is_xid_continue(c)).recognize(),
             eof.map(|_| <T as Stream>::Slice::default()),
-        ))(input)
+        ))
+        .parse_next(input)
     }
 
     fn other<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -234,7 +236,7 @@ mod parser {
         <T as Stream>::Slice: AsBStr + SliceLen + Default,
         <T as Stream>::Token: AsChar + Copy,
     {
-        take_while1(is_dec_digit_with_sep)(input)
+        take_while1(is_dec_digit_with_sep).parse_next(input)
     }
 
     fn hex_literal<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -243,7 +245,7 @@ mod parser {
         <T as Stream>::Slice: AsBStr + SliceLen + Default,
         <T as Stream>::Token: AsChar + Copy,
     {
-        preceded(('0', alt(('x', 'X'))), take_while1(is_hex_digit_with_sep))(input)
+        preceded(('0', alt(('x', 'X'))), take_while1(is_hex_digit_with_sep)).parse_next(input)
     }
 
     fn css_color<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -258,7 +260,8 @@ mod parser {
                 terminated(take_while_m_n(3, 8, is_lower_hex_digit), peek(sep1)),
                 terminated(take_while_m_n(3, 8, is_upper_hex_digit), peek(sep1)),
             )),
-        )(input)
+        )
+        .parse_next(input)
     }
 
     fn uuid_literal<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -315,7 +318,8 @@ mod parser {
         alt((
             take_while_m_n(IGNORE_HEX_MIN, IGNORE_HEX_MAX, is_lower_hex_digit),
             take_while_m_n(IGNORE_HEX_MIN, IGNORE_HEX_MAX, is_upper_hex_digit),
-        ))(input)
+        ))
+        .parse_next(input)
     }
 
     fn base64_literal<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -324,7 +328,7 @@ mod parser {
         <T as Stream>::Slice: AsBStr + SliceLen + Default,
         <T as Stream>::Token: AsChar + Copy,
     {
-        let (padding, captured) = take_while1(is_base64_digit)(input.clone())?;
+        let (padding, captured) = take_while1(is_base64_digit).parse_next(input.clone())?;
 
         const CHUNK: usize = 4;
         let padding_offset = input.offset_to(&padding);
@@ -341,11 +345,12 @@ mod parser {
                 .all(|c| !['/', '+'].contains(&c.as_char()))
         {
             return Err(winnow::error::ErrMode::Backtrack(
-                winnow::error::Error::new(input, winnow::error::ErrorKind::LengthValue),
+                winnow::error::Error::new(input, winnow::error::ErrorKind::Slice),
             ));
         }
 
-        let (after, _) = take_while_m_n(padding_len, padding_len, is_base64_padding)(padding)?;
+        let (after, _) =
+            take_while_m_n(padding_len, padding_len, is_base64_padding).parse_next(padding)?;
 
         let after_offset = input.offset_to(&after);
         Ok(input.next_slice(after_offset))
@@ -416,7 +421,7 @@ mod parser {
         // regular string that does escaping. The escaped letter might be part of a word, or it
         // might not be. Rather than guess and be wrong part of the time and correct people's words
         // incorrectly, we opt for just not evaluating it at all.
-        preceded(take_while1(is_escape), take_while0(is_xid_continue))(input)
+        preceded(take_while1(is_escape), take_while0(is_xid_continue)).parse_next(input)
     }
 
     fn printf<T>(input: T) -> IResult<T, <T as Stream>::Slice>
@@ -425,7 +430,7 @@ mod parser {
         <T as Stream>::Slice: AsBStr + SliceLen + Default,
         <T as Stream>::Token: AsChar + Copy,
     {
-        preceded('%', take_while1(is_xid_continue))(input)
+        preceded('%', take_while1(is_xid_continue)).parse_next(input)
     }
 
     fn take_many0<I, E, F>(mut f: F) -> impl FnMut(I) -> IResult<I, <I as Stream>::Slice, E>
diff --git a/crates/varcon-core/Cargo.toml b/crates/varcon-core/Cargo.toml
index ecde60c..fdfb924 100644
--- a/crates/varcon-core/Cargo.toml
+++ b/crates/varcon-core/Cargo.toml
@@ -16,7 +16,7 @@ parser = ["winnow"]
 flags = ["enumflags2"]
 
 [dependencies]
-winnow = { version = "0.3.3", optional = true }
+winnow = { version = "0.4.0", optional = true }
 enumflags2 = { version = "0.7", optional = true }
 
 [package.metadata.docs.rs]
diff --git a/crates/varcon-core/src/parser.rs b/crates/varcon-core/src/parser.rs
index 72c4bde..8378e8c 100644
--- a/crates/varcon-core/src/parser.rs
+++ b/crates/varcon-core/src/parser.rs
@@ -146,18 +146,20 @@ A B C: coloration's / B. Cv: colouration's
 impl Entry {
     pub fn parse(input: &str) -> IResult<&str, Self> {
         let var_sep = (winnow::character::space0, '/', winnow::character::space0);
-        let (input, variants) = winnow::multi::separated1(Variant::parse, var_sep)(input)?;
+        let (input, variants) =
+            winnow::multi::separated1(Variant::parse, var_sep).parse_next(input)?;
 
         let desc_sep = (winnow::character::space0, '|');
         let (input, description) =
-            winnow::combinator::opt((desc_sep, Self::parse_description))(input)?;
+            winnow::combinator::opt((desc_sep, Self::parse_description)).parse_next(input)?;
 
         let comment_sep = (winnow::character::space0, '#');
         let (input, comment) = winnow::combinator::opt((
             comment_sep,
             winnow::character::space1,
             winnow::character::not_line_ending,
-        ))(input)?;
+        ))
+        .parse_next(input)?;
 
         let mut e = match description {
             Some((_, description)) => description,
@@ -298,7 +300,8 @@ impl Variant {
     pub fn parse(input: &str) -> IResult<&str, Self> {
         let types = winnow::multi::separated1(Type::parse, winnow::character::space1);
         let sep = (winnow::bytes::tag(":"), winnow::character::space0);
-        let (input, (types, word)) = winnow::sequence::separated_pair(types, sep, word)(input)?;
+        let (input, (types, word)) =
+            winnow::sequence::separated_pair(types, sep, word).parse_next(input)?;
         let v = Self { types, word };
         Ok((input, v))
     }
@@ -380,8 +383,8 @@ mod test_variant {
 impl Type {
     pub fn parse(input: &str) -> IResult<&str, Type> {
         let (input, category) = Category::parse(input)?;
-        let (input, tag) = winnow::combinator::opt(Tag::parse)(input)?;
-        let (input, num) = winnow::combinator::opt(winnow::character::digit1)(input)?;
+        let (input, tag) = winnow::combinator::opt(Tag::parse).parse_next(input)?;
+        let (input, num) = winnow::combinator::opt(winnow::character::digit1).parse_next(input)?;
         let num = num.map(|s| s.parse().expect("parser ensured its a number"));
         let t = Type { category, tag, num };
         Ok((input, t))
@@ -517,7 +520,8 @@ impl Pos {
             verb.value(Pos::Verb),
             adjective.value(Pos::Adjective),
             adverb.value(Pos::Adverb),
-        ))(input)
+        ))
+        .parse_next(input)
     }
 }