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..42e851b7 100644
--- a/BuildSysPro/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
+++ b/BuildSysPro/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
@@ -11,7 +11,7 @@ MarkupSafe==2.1.0
 packaging==21.3
 pybtex==0.24.0
 pybtex-docutils==1.0.1
-Pygments==2.11.2
+Pygments==2.15.0
 pyparsing==3.0.7
 pytz==2021.3
 PyYAML==6.0