diff --git a/src/cleanup_thread.rs b/src/cleanup_thread.rs
index 8b66f3e..b76d746 100644
--- a/src/cleanup_thread.rs
+++ b/src/cleanup_thread.rs
@@ -6,7 +6,7 @@
 
 use crate::constants::{CLEAN_UP_INTERVAL, INITIAL_REFRESH_LOAD_INTERVAL};
 use crate::data::error::Res;
-use crate::helpers::{account_helper, comments_helper, conversations_helper, likes_helper, notifications_helper, posts_helper, user_helper};
+use crate::helpers::{account_helper, comments_helper, conversations_helper, likes_helper, notifications_helper, posts_helper, user_helper, admin_log_helper};
 
 /// Start the maintenance thread
 pub fn start() -> Res {
@@ -63,6 +63,8 @@ fn do_clean() -> Res {
         account_helper::remove_if_inactive_for_too_long_time(&user)?;
     }
 
+    // Clean up old admin actions
+    admin_log_helper::clean_old_logs()?;
 
     Ok(())
 }
\ No newline at end of file
diff --git a/src/constants.rs b/src/constants.rs
index cef8ba9..8815d29 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -115,6 +115,9 @@ pub mod conservation_policy {
 
     /// Minimum likes lifetime (1 month)
     pub const MIN_LIKES_LIFETIME: Duration = Duration::from_secs(60 * 60 * 24 * 30);
+
+    /// Admin actions log duration (3 months)
+    pub const ADMIN_ACTIONS_LOG_LIFETIME: Duration = Duration::from_secs(60 * 60 * 24 * 30 * 3);
 }
 
 /// WebSocket access token lifetime, in seconds
diff --git a/src/helpers/admin_log_helper.rs b/src/helpers/admin_log_helper.rs
index 22a3645..54f1982 100644
--- a/src/helpers/admin_log_helper.rs
+++ b/src/helpers/admin_log_helper.rs
@@ -2,6 +2,7 @@
 //!
 //! @author Pierre Hubert
 
+use crate::constants::conservation_policy::ADMIN_ACTIONS_LOG_LIFETIME;
 use crate::constants::database_tables_names::ADMIN_LOGS_TABLE;
 use crate::data::admin::AdminID;
 use crate::data::admin_action_log::AdminAction;
@@ -17,4 +18,12 @@ pub fn log_admin_action(admin: AdminID, ip: &str, action: AdminAction) -> Res {
         .add_u64("time", time())
         .add_str("action", &serde_json::to_string(&action)?)
         .insert_drop_result()
+}
+
+/// Clean old admin logs
+pub fn clean_old_logs() -> Res {
+    database::DeleteQuery::new(ADMIN_LOGS_TABLE)
+        .set_custom_where("time < ?")
+        .add_custom_where_arg_u64(time() - ADMIN_ACTIONS_LOG_LIFETIME.as_secs())
+        .exec()
 }
\ No newline at end of file