diff --git a/infra/base-sim/opentitan-requirements.txt b/infra/base-sim/opentitan-requirements.txt
index d4297cb..26ea3ff 100644
--- a/infra/base-sim/opentitan-requirements.txt
+++ b/infra/base-sim/opentitan-requirements.txt
@@ -1,4 +1,4 @@
-Mako==1.1.3
+Mako==1.2.2
 
 # Development version with OT-specific changes
 git+https://github.com/lowRISC/fusesoc.git@ot#egg=fusesoc >= 1.11.0