diff --git a/solubility_parameters/backend/requirements.txt b/solubility_parameters/backend/requirements.txt
index 61f6717..dedc579 100644
--- a/solubility_parameters/backend/requirements.txt
+++ b/solubility_parameters/backend/requirements.txt
@@ -1,5 +1,5 @@
     
-requests==2.21.0
+requests==2.31.0
 Flask==1.0.2
 oauthlib==3.0.1
 pyOpenSSL==19.0.0