diff --git a/Sources/Amplitude/Amplitude.m b/Sources/Amplitude/Amplitude.m
index 41911fc3..c56d65be 100644
--- a/Sources/Amplitude/Amplitude.m
+++ b/Sources/Amplitude/Amplitude.m
@@ -825,6 +825,9 @@ - (void)refreshDynamicConfig {
         __weak typeof(self) weakSelf = self;
         [[AMPConfigManager sharedInstance] refresh:^{
             __strong typeof(self) strongSelf = weakSelf;
+            if (strongSelf == nil) {
+                return;
+            }
             strongSelf->_serverUrl = [AMPConfigManager sharedInstance].ingestionEndpoint;
         }];
     }