diff --git a/hera_corr_f/control_software/casperfpga/requirements.txt b/hera_corr_f/control_software/casperfpga/requirements.txt
index d4c873b..29845eb 100644
--- a/hera_corr_f/control_software/casperfpga/requirements.txt
+++ b/hera_corr_f/control_software/casperfpga/requirements.txt
@@ -17,7 +17,7 @@ idna==2.6
 imagesize==0.7.1
 ipython==5.3.0
 ipython-genutils==0.2.0
-Jinja2==2.9.6
+Jinja2==2.10.1
 katcp==0.6.2
 linecache2==1.0.0
 livereload==2.5.1