diff --git a/example_agents/acme_r2d2/requirements.txt b/example_agents/acme_r2d2/requirements.txt
index c1bd668a..3e632cea 100644
--- a/example_agents/acme_r2d2/requirements.txt
+++ b/example_agents/acme_r2d2/requirements.txt
@@ -61,7 +61,7 @@ Keras-Preprocessing==1.1.2
 kiwisolver==1.3.1
 launchpad==1.1.0
 lockfile==0.12.2
-Mako==1.1.4
+Mako==1.2.2
 Markdown==3.3.4
 MarkupSafe==2.0.1
 matplotlib>=3.3.4