diff --git a/requirements.txt b/requirements.txt
index e31ccb9..983c213 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
 argparse==1.4.0
-flask==1.1.1
+flask==2.1.3
 plumbum==1.6.8
diff --git a/requirements_dev.txt b/requirements_dev.txt
index 35e787d..3ecb0ed 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -3,7 +3,7 @@ bumpversion==0.5.3
 black==19.10b0
 coverage==5.0.3
 cryptography==2.8
-flask==1.1.1
+flask==2.1.3
 mock==4.0.1
 pip==20.0.2
 plumbum==1.6.8