diff --git a/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt b/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
index a95cc3bbb3..22da818b98 100644
--- a/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
+++ b/IBPSA/Resources/src/fluid/heatpumps/calibration/doc/requirements.txt
@@ -1,6 +1,6 @@
 alabaster==0.7.12
 Babel==2.9.1
-certifi==2023.7.22
+certifi==2024.7.4
 charset-normalizer==2.0.12
 docutils==0.17.1
 idna==3.7