diff --git a/.gitattributes b/.gitattributes
index 0b75546..7d831d3 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,2 +1,6 @@
-*.pdf filter=lfs diff=lfs merge=lfs -text
-*.gif filter=lfs diff=lfs merge=lfs -text
+*.pdf filter=lfs diff=lfs merge=lfs -text
+*.gif filter=lfs diff=lfs merge=lfs -text
+*.jar filter=lfs diff=lfs merge=lfs -text
+*.JAR filter=lfs diff=lfs merge=lfs -text
+*.mp4 filter=lfs diff=lfs merge=lfs -text
+*.MP4 filter=lfs diff=lfs merge=lfs -text
diff --git a/2019_11_07_workshop/vuln-app-demo/docker/ysoserial-0.0.5.jar b/2019_11_07_workshop/vuln-app-demo/docker/ysoserial-0.0.5.jar
index a5cb9ce..9d0a6a6 100644
Binary files a/2019_11_07_workshop/vuln-app-demo/docker/ysoserial-0.0.5.jar and b/2019_11_07_workshop/vuln-app-demo/docker/ysoserial-0.0.5.jar differ