diff --git a/requirements.txt b/requirements.txt
index a3ff5ee..9982456 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,6 +6,6 @@ pyparsing==2.4.7
 rdflib==5.0.0
 six==1.14.0
 SPARQLWrapper==1.8.5
-flask==1.1.2
+flask==2.3.2
 fire==0.3.1
 scikit-learn==0.22.2.post1