diff --git a/Codes/2-D Advection Diffusion ROM/requirements.txt b/Codes/2-D Advection Diffusion ROM/requirements.txt
index 1dd17a4..4d527c6 100644
--- a/Codes/2-D Advection Diffusion ROM/requirements.txt	
+++ b/Codes/2-D Advection Diffusion ROM/requirements.txt	
@@ -27,7 +27,7 @@ beautifulsoup4==4.9.1
 bitarray @ file:///C:/ci/bitarray_1598885049384/work
 bkcharts==0.2
 blaze==0.11.3
-bleach==3.1.5
+bleach==3.3.0
 bokeh @ file:///C:/ci/bokeh_1598885504939/work
 boto==2.49.0
 Bottleneck==1.3.2