diff --git a/bin/core/src/config.rs b/bin/core/src/config.rs
index 67736cb6e..1424bc1cb 100644
--- a/bin/core/src/config.rs
+++ b/bin/core/src/config.rs
@@ -55,11 +55,11 @@ pub struct CoreConfig {
 
     // number of days to keep stats, or 0 to disable pruning. stats older than this number of days are deleted on a daily cycle
     #[serde(default)]
-    pub keep_stats_for_days: u128,
+    pub keep_stats_for_days: u64,
 
     // number of days to keep alerts, or 0 to disable pruning. alerts older than this number of days are deleted on a daily cycle
     #[serde(default)]
-    pub keep_alerts_for_days: u128,
+    pub keep_alerts_for_days: u64,
 
     // used to verify validity from github webhooks
     #[serde(default)]
diff --git a/bin/core/src/state.rs b/bin/core/src/state.rs
index fdbdfbfee..e4e694cf0 100644
--- a/bin/core/src/state.rs
+++ b/bin/core/src/state.rs
@@ -97,7 +97,7 @@ impl State {
             return Ok(());
         }
         let delete_before_ts =
-            (unix_timestamp_ms() - self.config.keep_stats_for_days * ONE_DAY_MS) as i64;
+            (unix_timestamp_ms() - self.config.keep_stats_for_days as u128 * ONE_DAY_MS) as i64;
         let res = self
             .db
             .stats
@@ -114,7 +114,7 @@ impl State {
             return Ok(());
         }
         let delete_before_ts =
-            (unix_timestamp_ms() - self.config.keep_alerts_for_days * ONE_DAY_MS) as i64;
+            (unix_timestamp_ms() - self.config.keep_alerts_for_days as u128 * ONE_DAY_MS) as i64;
         let res = self
             .db
             .alerts