diff --git a/dowhy-causal-inference/requirements.txt b/dowhy-causal-inference/requirements.txt
index 768f22dc..8a97ba98 100644
--- a/dowhy-causal-inference/requirements.txt
+++ b/dowhy-causal-inference/requirements.txt
@@ -2,6 +2,6 @@ sklearn==0.0
 networkx==2.1
 matplotlib==2.2.2
 sympy==1.2
-Flask==1.0.2
+Flask==2.3.2
 pygraphviz==1.3.1
 git+git://github.com/Microsoft/dowhy.git