diff --git a/server/db/pg/schema.ts b/server/db/pg/schema.ts
index d307f399..33d3fef0 100644
--- a/server/db/pg/schema.ts
+++ b/server/db/pg/schema.ts
@@ -513,7 +513,7 @@ export const clients = pgTable("clients", {
     megabytesIn: real("bytesIn"),
     megabytesOut: real("bytesOut"),
     lastBandwidthUpdate: varchar("lastBandwidthUpdate"),
-    lastPing: varchar("lastPing"),
+    lastPing: integer("lastPing"),
     type: varchar("type").notNull(), // "olm"
     online: boolean("online").notNull().default(false),
     // endpoint: varchar("endpoint"),
diff --git a/server/db/sqlite/schema.ts b/server/db/sqlite/schema.ts
index 10f6686e..77136c68 100644
--- a/server/db/sqlite/schema.ts
+++ b/server/db/sqlite/schema.ts
@@ -213,7 +213,7 @@ export const clients = sqliteTable("clients", {
     megabytesIn: integer("bytesIn"),
     megabytesOut: integer("bytesOut"),
     lastBandwidthUpdate: text("lastBandwidthUpdate"),
-    lastPing: text("lastPing"),
+    lastPing: integer("lastPing"),
     type: text("type").notNull(), // "olm"
     online: integer("online", { mode: "boolean" }).notNull().default(false),
     // endpoint: text("endpoint"),
diff --git a/server/routers/olm/handleOlmPingMessage.ts b/server/routers/olm/handleOlmPingMessage.ts
index c95f36af..04659bb3 100644
--- a/server/routers/olm/handleOlmPingMessage.ts
+++ b/server/routers/olm/handleOlmPingMessage.ts
@@ -28,7 +28,7 @@ export const startOfflineChecker = (): void => {
                 .set({ online: false })
                 .where(
                     eq(clients.online, true) &&
-                    (lt(clients.lastPing, twoMinutesAgo.toISOString()) || isNull(clients.lastPing))
+                    (lt(clients.lastPing, twoMinutesAgo.getTime() / 1000) || isNull(clients.lastPing))
                 );
 
         } catch (error) {
@@ -72,7 +72,7 @@ export const handleOlmPingMessage: MessageHandler = async (context) => {
         await db
             .update(clients)
             .set({
-                lastPing: new Date().toISOString(),
+                lastPing: new Date().getTime() / 1000,
                 online: true,
             })
             .where(eq(clients.clientId, olm.clientId));