diff --git a/testsuite/ansible_docker/test-requirements.txt b/testsuite/ansible_docker/test-requirements.txt
index d0eb1d3db..5fa9529a9 100644
--- a/testsuite/ansible_docker/test-requirements.txt
+++ b/testsuite/ansible_docker/test-requirements.txt
@@ -4,5 +4,5 @@ pep8
 pylint
 pytest
 pytest-cov
-pytest-flask
+pytest-flask==0.10.0
 pytest-watch
diff --git a/testsuite/docker/test-config/test-requirements.txt b/testsuite/docker/test-config/test-requirements.txt
index d0eb1d3db..5fa9529a9 100644
--- a/testsuite/docker/test-config/test-requirements.txt
+++ b/testsuite/docker/test-config/test-requirements.txt
@@ -4,5 +4,5 @@ pep8
 pylint
 pytest
 pytest-cov
-pytest-flask
+pytest-flask==0.10.0
 pytest-watch