diff --git a/solubility_parameters/backend/requirements.txt b/solubility_parameters/backend/requirements.txt
index 61f6717..44ad750 100644
--- a/solubility_parameters/backend/requirements.txt
+++ b/solubility_parameters/backend/requirements.txt
@@ -1,6 +1,6 @@
     
 requests==2.21.0
-Flask==1.0.2
+Flask==2.3.2
 oauthlib==3.0.1
 pyOpenSSL==19.0.0
 Flask-Login==0.4.1
\ No newline at end of file