diff --git a/Notebooks/quantum chaos/classical billiard/BilliardsDynamics.nb b/Notebooks/quantum chaos/classical billiard/BilliardsDynamics.nb
index f3b0ef3d..c4b7949a 100644
--- a/Notebooks/quantum chaos/classical billiard/BilliardsDynamics.nb	
+++ b/Notebooks/quantum chaos/classical billiard/BilliardsDynamics.nb	
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:a5f5ce71361db2edc36adde6fb0b44cb39c17061c77cec587df23bc5ef926425
-size 9480240
+oid sha256:48fcc4ab5fdceced04c544c0b55437424c806d93feb01f24b5c0a4b8abe9e979
+size 10122470