diff --git a/Source/FikaAmazonAPI/Services/RequestService.cs b/Source/FikaAmazonAPI/Services/RequestService.cs
index accaab42..e4cf7b59 100644
--- a/Source/FikaAmazonAPI/Services/RequestService.cs
+++ b/Source/FikaAmazonAPI/Services/RequestService.cs
@@ -214,7 +214,7 @@ private void RestHeader()
 
                     cancellationToken.ThrowIfCancellationRequested();
 
-                    AmazonCredential.UsagePlansTimings[rateLimitType].Delay();
+                    await AmazonCredential.UsagePlansTimings[rateLimitType].Delay();
                     tryCount++;
                 }
             }
diff --git a/Source/FikaAmazonAPI/Utils/RateLimits.cs b/Source/FikaAmazonAPI/Utils/RateLimits.cs
index f08d34b1..de20624f 100644
--- a/Source/FikaAmazonAPI/Utils/RateLimits.cs
+++ b/Source/FikaAmazonAPI/Utils/RateLimits.cs
@@ -79,9 +79,9 @@ internal void SetRateLimit(decimal rate)
             Rate = rate;
         }
 
-        internal void Delay()
+        internal Task Delay()
         {
-            Task.Delay(GetRatePeriodMs()).Wait();
+            return Task.Delay(GetRatePeriodMs());
         }
     }
 }