diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 650d458..6b17d72 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -76,7 +76,7 @@ jobs:
           - selinux-version: '3.7'
             rust-toolchain: nightly
           - selinux-version: '3.7'
-            rust-toolchain: 1.81
+            rust-toolchain: 1.83
     steps:
     - uses: actions/checkout@v3
     - name: Checkout selinux userspace
diff --git a/Cargo.toml b/Cargo.toml
index 7ca8304..915b7eb 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@ name = "selinux-cascade"
 version = "0.0.2"
 description = "A High Level Language for specifying SELinux policy"
 authors = ["Daniel Burgener <dburgener@linux.microsoft.com>", "Mickael Salaun <mic@linux.microsoft.com>"]
-edition = "2018"
+edition = "2021"
 license = "MIT"
 repository = "https://github.com/dburgener/cascade"
 readme = "README.md"
diff --git a/src/ast.rs b/src/ast.rs
index 21c7249..a60637a 100644
--- a/src/ast.rs
+++ b/src/ast.rs
@@ -864,7 +864,7 @@ impl fmt::Display for Port {
             Some(high) => format!("{}-{}", self.low_port_num, high),
             None => self.low_port_num.to_string(),
         };
-        write!(f, "{}", port_string)
+        write!(f, "{port_string}")
     }
 }
 
@@ -1328,7 +1328,7 @@ mod tests {
         let result = if_block.get_renamed_statement(&renames);
 
         // matches!() won't work because matching against box patterns is nightly only
-        let debug_str = format!("{:?}", result);
+        let debug_str = format!("{result:?}");
         assert!(debug_str.contains("new_name"));
         assert!(!debug_str.contains("old_name"));
         assert!(debug_str.contains("unchanged"));
diff --git a/src/compile.rs b/src/compile.rs
index 6bc708b..e0ddd4d 100644
--- a/src/compile.rs
+++ b/src/compile.rs
@@ -1534,7 +1534,7 @@ pub fn get_synthetic_resource_name(
     dom_name: &CascadeString,
     associated_resource: &CascadeString,
 ) -> CascadeString {
-    let cs_name = format!("{}.{}", dom_name, associated_resource);
+    let cs_name = format!("{dom_name}.{associated_resource}");
     // We keep the range of the *resource* part specifically, which should always be where this
     // resource was defined
     match associated_resource.get_range() {
diff --git a/src/functions.rs b/src/functions.rs
index e0eea6f..93067f7 100644
--- a/src/functions.rs
+++ b/src/functions.rs
@@ -2226,7 +2226,7 @@ fn validate_cast(
             "Cannot typecast",
             file,
             r,
-            format!("This is not something that can be typecast. {}", msg).as_ref(),
+            format!("This is not something that can be typecast. {msg}").as_ref(),
         )
     };
 
@@ -3408,7 +3408,7 @@ impl<'a> ArgForValidation<'a> {
     ) -> Result<WithWarnings<()>, ErrorItem> {
         let err_ret = |msg: &str, r: Option<Range<usize>>| {
             ErrorItem::make_compile_or_internal_error(
-                format!("Cannot typecast {}", msg).as_ref(),
+                format!("Cannot typecast {msg}").as_ref(),
                 file,
                 r,
                 "This is not something that can be typecast",
@@ -3997,10 +3997,7 @@ pub fn search_for_recursion(
                             "Recursive Function call found",
                             file,
                             range,
-                            &format!(
-                                "This function calls the next function: {}.",
-                                previous_function
-                            ),
+                            &format!("This function calls the next function: {previous_function}."),
                         ));
                         previous_function = function_info.get_full_display_name();
                     }
diff --git a/src/warning.rs b/src/warning.rs
index 1321a29..42dde7b 100644
--- a/src/warning.rs
+++ b/src/warning.rs
@@ -122,7 +122,7 @@ mod tests {
         let mut ret = WithWarnings::from(warn_string);
         if do_warn {
             ret.add_warning(Warning::new(
-                &format!("Some warning {}", call_count),
+                &format!("Some warning {call_count}"),
                 file,
                 2..4, // doesn't matter for the test
                 "Some substring",