diff --git a/stix_shifter/requirements.txt b/stix_shifter/requirements.txt
index b728b4205..c955c0c47 100644
--- a/stix_shifter/requirements.txt
+++ b/stix_shifter/requirements.txt
@@ -1,7 +1,7 @@
 adal==1.2.7
 antlr4-python3-runtime==4.8
 boto3==1.26.74
-flask==2.2.2
+flask==2.2.3
 pyOpenSSL==23.0.0
 flatten_json==0.1.13
 python-dateutil==2.8.2