diff --git a/src/user_management/manager.rs b/src/user_management/manager.rs
index 426096a..da25cf9 100644
--- a/src/user_management/manager.rs
+++ b/src/user_management/manager.rs
@@ -71,7 +71,7 @@ impl UserManager {
     /// # Errors
     /// An error is thrown if there is an error reading from the database or if data
     /// recieved from the database is corrupt
-    pub fn lookup_user<'de, UserData>(
+    pub fn lookup_user<UserData>(
         &self,
         username: impl AsRef<[u8]>
     ) -> Result<Option<PartialUser<UserData>>>
@@ -93,7 +93,7 @@ impl UserManager {
     ///
     /// # Panics
     /// Pancis if the database is corrupt
-    pub fn get_user<'de, UserData>(
+    pub fn get_user<UserData>(
         &self,
         cert: Option<&Certificate>
     ) -> Result<User<UserData>>
diff --git a/src/user_management/mod.rs b/src/user_management/mod.rs
index 4384355..fbc8868 100644
--- a/src/user_management/mod.rs
+++ b/src/user_management/mod.rs
@@ -23,8 +23,6 @@ mod manager;
 pub use manager::UserManager;
 pub use user::User;
 pub use manager::CertificateData;
-use crate::types::Request;
-use user::{NotSignedInUser, SignedInUser};
 
 #[derive(Debug)]
 pub enum UserManagerError {
diff --git a/src/user_management/user.rs b/src/user_management/user.rs
index 13ee056..7d4be89 100644
--- a/src/user_management/user.rs
+++ b/src/user_management/user.rs
@@ -42,13 +42,13 @@ impl<UserData> PartialUser<UserData> {
     /// A list of certificate hashes registered to this user
     ///
     /// Can be looked up using [`UserManager::lookup_certificate()`] to get full information
-    pub fn certificates(&self) -> &Vec<u32> {
+    pub const fn certificates(&self) -> &Vec<u32> {
         &self.certificates
     }
 
     /// The bcrypt hash of the user's password
     pub fn pass_hash(&self) -> Option<&str> {
-        self.pass_hash.as_ref().map(|s| s.as_str())
+        self.pass_hash.as_deref()
     }
 
     /// Write user data to the database