diff --git a/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/OAuth.java b/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/OAuth.java
index 7ae6d51a0..c71b02216 100644
--- a/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/OAuth.java
+++ b/HMCLCore/src/main/java/org/jackhuang/hmcl/auth/OAuth.java
@@ -109,7 +109,7 @@ public class OAuth {
         options.callback.openBrowser(deviceTokenResponse.verificationURI);
 
         long startTime = System.nanoTime();
-        int interval = deviceTokenResponse.interval;
+        long interval = TimeUnit.MILLISECONDS.convert(deviceTokenResponse.interval, TimeUnit.SECONDS);
 
         while (true) {
             Thread.sleep(Math.max(interval, 1));
@@ -138,7 +138,7 @@ public class OAuth {
             }
 
             if ("slow_down".equals(tokenResponse.error)) {
-                interval += 5;
+                interval += 5000;
                 continue;
             }