diff --git a/requirements.txt b/requirements.txt
index 0b87019..2679dac 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-Flask==0.10.1
+Flask==0.12.3
 Chalice==1.3.0
 httpretty==0.8.3
 oauth2==1.9.0.post1
diff --git a/setup.py b/setup.py
index 79498ba..cbb9aec 100644
--- a/setup.py
+++ b/setup.py
@@ -56,7 +56,7 @@ def run_tests(self):
     extra = dict(test_suite="pylti.tests",
                  tests_require=["pytest-cov>=2.3.0", "pytest-pep8>=1.0.6",
                                 "pytest-flakes>=1.0.1", "pytest>=2.9.2",
-                                "httpretty>=0.8.3", "flask>=0.10.1",
+                                "httpretty>=0.8.3", "flask>=0.12.3",
                                 "oauthlib>=0.6.3", "semantic_version>=2.3.1",
                                 "mock==1.0.1"],
                  cmdclass={"test": PyTest},
diff --git a/test_requirements.txt b/test_requirements.txt
index d515c2c..be40bbd 100644
--- a/test_requirements.txt
+++ b/test_requirements.txt
@@ -3,7 +3,7 @@ pytest-pep8>=1.0.6
 pytest-flakes>=1.0.1
 pytest>=2.9.2
 httpretty>=0.8.3
-flask>=0.10.1
+flask>=0.12.3
 chalice>=1.3.0
 oauthlib>=0.6.3
 semantic_version>=2.3.1