diff --git a/SVGAPlayer.podspec b/SVGAPlayer.podspec
index 3753c367..38e50349 100644
--- a/SVGAPlayer.podspec
+++ b/SVGAPlayer.podspec
@@ -25,7 +25,7 @@ Pod::Spec.new do |s|
   s.subspec 'ProtoFiles' do |ss|
     ss.source_files  = "Source/pbobjc/*.{h,m}"
     ss.requires_arc = false
-    ss.dependency 'Protobuf', '~> 3.4'
+    ss.dependency 'Protobuf', '~> 3.22.1'
     ss.pod_target_xcconfig = {
       'GCC_PREPROCESSOR_DEFINITIONS' => '$(inherited) GPB_USE_PROTOBUF_FRAMEWORK_IMPORTS=1',
     }
diff --git a/Source/SVGAPlayer.m b/Source/SVGAPlayer.m
index 289e09f0..60f38024 100644
--- a/Source/SVGAPlayer.m
+++ b/Source/SVGAPlayer.m
@@ -400,6 +400,7 @@ - (void)next {
         if (self.videoItem.frames > 0) {
             if ([delegate respondsToSelector:@selector(svgaPlayer:didAnimatedToPercentage:)]) {
                 [delegate svgaPlayer:self didAnimatedToPercentage:(CGFloat)(self.currentFrame + 1) / (CGFloat)self.videoItem.frames];
+                
             } else if ([delegate respondsToSelector:@selector(svgaPlayerDidAnimatedToPercentage:)]) {
                 [delegate svgaPlayerDidAnimatedToPercentage:(CGFloat)(self.currentFrame + 1) / (CGFloat)self.videoItem.frames];
             }
diff --git a/Source/SVGAVideoEntity.h b/Source/SVGAVideoEntity.h
index 77498206..81329645 100644
--- a/Source/SVGAVideoEntity.h
+++ b/Source/SVGAVideoEntity.h
@@ -36,6 +36,10 @@
 - (void)saveCache:(NSString *)cacheKey;
 // NSMapTable弱缓存
 - (void)saveWeakCache:(NSString *)cacheKey;
+/// 清除缓存
++ (void)clearCache:(NSString *)cacheKey;
+/// 清除所有缓存
++ (void)clearAllCache;
 @end
 
 
diff --git a/Source/SVGAVideoEntity.m b/Source/SVGAVideoEntity.m
index cd63400a..1cb68586 100644
--- a/Source/SVGAVideoEntity.m
+++ b/Source/SVGAVideoEntity.m
@@ -233,6 +233,16 @@ - (void)saveWeakCache:(NSString *)cacheKey {
     dispatch_semaphore_signal(videoSemaphore);
 }
 
++ (void)clearCache:(NSString *)cacheKey{
+    dispatch_semaphore_wait(videoSemaphore, DISPATCH_TIME_FOREVER);
+    [videoCache removeObjectForKey:cacheKey];
+    dispatch_semaphore_signal(videoSemaphore);
+}
+
++ (void)clearAllCache{
+    [videoCache removeAllObjects];
+}
+
 @end
 
 @interface SVGAVideoSpriteEntity()