diff --git a/test-requirements.txt b/test-requirements.txt
index 87cf231..cb5bd15 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -1,5 +1,5 @@
 diff-doc==0.1.0
-flask==1.0.2
+flask==2.3.2
 graphql-core==3.2.3
 precisely==0.1.6
 pyflakes==2.5.0