diff --git a/Cargo.toml b/Cargo.toml
index 923867a..a35aabc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -32,7 +32,7 @@ default-features = false
 features = ["clock", "std", "wasmbind"]
 
 [dependencies.nom]
-version = "7"
+version = "8.0.0-alpha2"
 optional = true
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies.uuid]
diff --git a/src/parser/components.rs b/src/parser/components.rs
index f985068..4997953 100644
--- a/src/parser/components.rs
+++ b/src/parser/components.rs
@@ -245,7 +245,7 @@ pub fn read_component(input: &str) -> Result<Component<'_>, String> {
 pub fn component<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     input: &'a str,
 ) -> IResult<&'a str, Component, E> {
-    let (input, name) = line("BEGIN:", valid_key_sequence_cow)(input)?;
+    let (input, name) = line("BEGIN:", valid_key_sequence_cow).parse(input)?;
 
     let (input, (properties, components)) = many_till(
         cut(context(
@@ -270,7 +270,7 @@ pub fn component<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     })
     .parse(input)?;
 
-    let (input, _) = many0(tag("\n"))(input)?;
+    let (input, _) = many0(tag("\n")).parse(input)?;
 
     Ok((
         input,
@@ -513,5 +513,5 @@ fn test_faulty_component() {
 pub fn components<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     input: &'a str,
 ) -> IResult<&'a str, Vec<Component>, E> {
-    complete(many0(all_consuming(component)))(input)
+    complete(many0(all_consuming(component))).parse(input)
 }
diff --git a/src/parser/parameters.rs b/src/parser/parameters.rs
index 423e305..d55e8e6 100644
--- a/src/parser/parameters.rs
+++ b/src/parser/parameters.rs
@@ -5,7 +5,7 @@ use nom::{
     combinator::{eof, opt},
     error::{convert_error, ContextError, ParseError, VerboseError},
     multi::many0,
-    sequence::{delimited, preceded, separated_pair, tuple},
+    sequence::{delimited, preceded, separated_pair},
     Finish, IResult, Parser,
 };
 
@@ -130,14 +130,14 @@ fn remove_empty_string_parsed(input: Option<ParseString<'_>>) -> Option<ParseStr
 fn parameter<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     input: &'a str,
 ) -> IResult<&'a str, Parameter<'a>, E> {
-    alt((pair_parameter, base_parameter))(input)
+    alt((pair_parameter, base_parameter)).parse(input)
 }
 
 fn pair_parameter<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     input: &'a str,
 ) -> IResult<&'a str, Parameter<'a>, E> {
     preceded(
-        tuple((tag(";"), space0)),
+        (tag(";"), space0),
         separated_pair(
             valid_key_sequence_cow, //key
             tag("="),
@@ -159,9 +159,9 @@ fn pair_parameter<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
 fn base_parameter<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     input: &'a str,
 ) -> IResult<&'a str, Parameter<'a>, E> {
-    tuple((
+    (
         preceded(
-            tuple((tag(";"), space0)),
+            (tag(";"), space0),
             valid_key_sequence_cow, //key
         ),
         opt(preceded(
@@ -174,9 +174,9 @@ fn base_parameter<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
             .map(ParseString::from),
         ))
         .map(remove_empty_string_parsed),
-    ))
-    .map(|(key, val)| Parameter { key, val })
-    .parse(input)
+    )
+        .map(|(key, val)| Parameter { key, val })
+        .parse(input)
 }
 
 // parameter list
@@ -215,5 +215,5 @@ pub fn parse_parameter_list() {
 pub fn parameters<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
     input: &'a str,
 ) -> IResult<&'a str, Vec<Parameter>, E> {
-    many0(parameter)(input)
+    many0(parameter).parse(input)
 }
diff --git a/src/parser/properties.rs b/src/parser/properties.rs
index 4bc0bcd..5730601 100644
--- a/src/parser/properties.rs
+++ b/src/parser/properties.rs
@@ -16,7 +16,7 @@ use nom::{
     character::complete::{line_ending, multispace0},
     combinator::{cut, opt},
     error::{context, convert_error, ContextError, ParseError, VerboseError},
-    sequence::{preceded, separated_pair, tuple},
+    sequence::{preceded, separated_pair},
     Finish, IResult, Parser,
 };
 
@@ -371,10 +371,10 @@ pub fn property<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
 ) -> IResult<&'a str, Property, E> {
     context(
         "property",
-        cut(tuple((
+        cut((
             alt((
                 separated_pair(
-                    tuple((
+                    (
                         // preceded(multispace0, alpha_or_dash), // key
                         cut(context(
                             // this must be interpreted as component by `component()`
@@ -383,7 +383,7 @@ pub fn property<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
                             preceded(multispace0, property_key).map(ParseString::from),
                         )), // key
                         parameters, // params
-                    )),
+                    ),
                     context("property separator", tag(":")), // separator
                     context(
                         "property value",
@@ -411,7 +411,7 @@ pub fn property<'a, E: ParseError<&'a str> + ContextError<&'a str>>(
             };
 
             Property { name, val, params }
-        })),
+        }),
     )
     .parse(input)
 }
diff --git a/src/parser/utils.rs b/src/parser/utils.rs
index c019fbf..570e035 100644
--- a/src/parser/utils.rs
+++ b/src/parser/utils.rs
@@ -45,16 +45,16 @@ pub fn valid_key_sequence_cow<'a, E: ParseError<&'a str> + ContextError<&'a str>
     .parse(input)
 }
 
-pub fn line<'a, O, E: ParseError<&'a str>, F: Parser<&'a str, O, E>>(
+pub fn line<'a, O, E: ParseError<&'a str>, F: Parser<&'a str, Output = O, Error = E>>(
     prefix: &'a str,
     f: F,
-) -> impl FnMut(&'a str) -> IResult<&'a str, O, E> {
+) -> impl Parser<&'a str, Output = O, Error = E> {
     line_separated(complete(preceded(tag_no_case(prefix), f)))
 }
 
-pub fn line_separated<'a, O, E: ParseError<&'a str>, F: Parser<&'a str, O, E>>(
+pub fn line_separated<'a, O, E: ParseError<&'a str>, F: Parser<&'a str, Output = O, Error = E>>(
     f: F,
-) -> impl FnMut(&'a str) -> IResult<&'a str, O, E> {
+) -> impl Parser<&'a str, Output = O, Error = E> {
     delimited(many0(line_ending), f, many0(line_ending))
 }