diff --git a/README.md b/README.md
index 7119bb7..48ecec8 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,7 @@ impl Options<Arg> for Settings {
     }
 }
 
-fn run(args: &'static [&'static str]) -> String {
+fn run(args: &[&str]) -> String {
     let s = Settings::default().parse(args);
     let mut output = if s.caps {
         s.text.to_uppercase()
diff --git a/src/lib.rs b/src/lib.rs
index d259d9d..e098140 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -50,7 +50,7 @@ pub trait Arguments: Sized {
     /// [`ArgumentIter<Self>`](ArgumentIter).
     fn parse<I>(args: I) -> ArgumentIter<Self>
     where
-        I: IntoIterator + 'static,
+        I: IntoIterator,
         I::Item: Into<OsString>,
     {
         ArgumentIter::<Self>::from_args(args)
@@ -86,7 +86,7 @@ pub trait Arguments: Sized {
     /// exit if `--help` or `--version` are passed and if any errors are found.
     fn check<I>(args: I)
     where
-        I: IntoIterator + 'static,
+        I: IntoIterator,
         I::Item: Into<OsString>,
     {
         exit_if_err(Self::try_check(args), Self::EXIT_CODE)
@@ -98,7 +98,7 @@ pub trait Arguments: Sized {
     /// exit if `--help` or `--version` are passed.
     fn try_check<I>(args: I) -> Result<(), Error>
     where
-        I: IntoIterator + 'static,
+        I: IntoIterator,
         I::Item: Into<OsString>,
     {
         let mut iter = Self::parse(args);
@@ -124,7 +124,7 @@ pub struct ArgumentIter<T: Arguments> {
 impl<T: Arguments> ArgumentIter<T> {
     fn from_args<I>(args: I) -> Self
     where
-        I: IntoIterator + 'static,
+        I: IntoIterator,
         I::Item: Into<OsString>,
     {
         Self {
@@ -181,7 +181,7 @@ pub trait Options<Arg: Arguments>: Sized {
     /// Parse an iterator of arguments into the options
     fn parse<I>(self, args: I) -> Self
     where
-        I: IntoIterator + 'static,
+        I: IntoIterator,
         I::Item: Into<OsString>,
     {
         exit_if_err(self.try_parse(args), Arg::EXIT_CODE)
@@ -190,7 +190,7 @@ pub trait Options<Arg: Arguments>: Sized {
     #[allow(unused_mut)]
     fn try_parse<I>(mut self, args: I) -> Result<Self, Error>
     where
-        I: IntoIterator + 'static,
+        I: IntoIterator,
         I::Item: Into<OsString>,
     {
         // Hacky but it works: if the parse-is-complete flag is active the
@@ -225,7 +225,7 @@ pub trait Options<Arg: Arguments>: Sized {
 #[cfg(feature = "parse-is-complete")]
 fn print_complete<I, O: Options<Arg>, Arg: Arguments>(mut args: I)
 where
-    I: Iterator + 'static,
+    I: Iterator,
     I::Item: Into<OsString>,
 {
     let _exec_name = args.next();
diff --git a/tests/coreutils/basename.rs b/tests/coreutils/basename.rs
index 7ceaa33..66d598a 100644
--- a/tests/coreutils/basename.rs
+++ b/tests/coreutils/basename.rs
@@ -37,7 +37,7 @@ impl Options<Arg> for Settings {
     }
 }
 
-fn parse(args: &'static [&'static str]) -> Settings {
+fn parse(args: &[&str]) -> Settings {
     let mut settings = Settings::default().parse(args);
     if !settings.multiple {
         assert_eq!(settings.names.len(), 2);
diff --git a/tests/coreutils/head.rs b/tests/coreutils/head.rs
index 40f3e81..c1257c7 100644
--- a/tests/coreutils/head.rs
+++ b/tests/coreutils/head.rs
@@ -10,7 +10,7 @@ use uutils_args::{Arguments, Options, Value};
 // optional at compile time. As the GNU docs explain, it's very error-prone.
 fn parse_deprecated<I>(iter: I) -> Option<Settings>
 where
-    I: IntoIterator + Clone + 'static,
+    I: IntoIterator + Clone,
     I::Item: Into<OsString>,
 {
     let mut iter = iter.into_iter();
@@ -210,7 +210,7 @@ impl Options<Arg> for Settings {
 
 fn parse_head<I>(iter: I) -> Result<Settings, uutils_args::Error>
 where
-    I: IntoIterator + Clone + 'static,
+    I: IntoIterator + Clone,
     I::Item: Into<OsString>,
 {
     match parse_deprecated(iter.clone()) {
diff --git a/tests/coreutils/tail.rs b/tests/coreutils/tail.rs
index 671b9be..7e6b63e 100644
--- a/tests/coreutils/tail.rs
+++ b/tests/coreutils/tail.rs
@@ -10,7 +10,7 @@ use uutils_args::{Arguments, Options, Value};
 // optional at compile time. As the GNU docs explain, it's very error-prone.
 fn parse_deprecated<I>(iter: I) -> Option<Settings>
 where
-    I: IntoIterator + Clone + 'static,
+    I: IntoIterator + Clone,
     I::Item: Into<OsString>,
 {
     let mut iter = iter.into_iter();
@@ -275,7 +275,7 @@ impl Options<Arg> for Settings {
 
 fn parse_tail<I>(iter: I) -> Result<Settings, uutils_args::Error>
 where
-    I: IntoIterator + Clone + 'static,
+    I: IntoIterator + Clone,
     I::Item: Into<OsString>,
 {
     match parse_deprecated(iter.clone()) {