diff --git a/BuildSysPro/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt b/BuildSysPro/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
index caacda67..ed91ec70 100644
--- a/BuildSysPro/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
+++ b/BuildSysPro/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
@@ -15,7 +15,7 @@ Pygments==2.11.2
 pyparsing==3.0.7
 pytz==2021.3
 PyYAML==6.0
-requests==2.27.1
+requests==2.31.0
 six==1.16.0
 snowballstemmer==2.2.0
 Sphinx==4.3.2