diff --git a/PnP Resection - Lavenberg Marquart Optim/requirements.txt b/PnP Resection - Lavenberg Marquart Optim/requirements.txt
index e15e35f..d6be470 100644
--- a/PnP Resection - Lavenberg Marquart Optim/requirements.txt	
+++ b/PnP Resection - Lavenberg Marquart Optim/requirements.txt	
@@ -1,7 +1,7 @@
 appnope==0.1.0
 attrs==19.2.0
 backcall==0.1.0
-bleach==3.1.0
+bleach==3.3.0
 cycler==0.10.0
 decorator==4.4.0
 defusedxml==0.6.0