diff --git a/requirements.txt b/requirements.txt
index 875e27a94..0c9b3f1e0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -13,7 +13,7 @@ flask-marshmallow==0.6.2
 Flask-Bcrypt==0.6.2
 credstash==1.8.0
 boto3==1.4.4
-celery==3.1.25
+celery==3.1.25 # pyup: <4
 monotonic==1.2
 statsd==3.2.1
 jsonschema==2.5.1
diff --git a/requirements_for_test.txt b/requirements_for_test.txt
index 62e3e4049..78d2d58ae 100644
--- a/requirements_for_test.txt
+++ b/requirements_for_test.txt
@@ -1,11 +1,11 @@
 -r requirements.txt
 pycodestyle==2.3.1
-pytest==3.0.1
-pytest-mock==1.2
-pytest-cov==2.3.1
+pytest==3.1.3
+pytest-mock==1.6.2
+pytest-cov==2.5.1
 coveralls==1.1
-moto==0.4.25
-flex==5.8.0
-freezegun==0.3.7
-requests-mock==1.0.0
+moto==1.0.1
+flex==6.11.0
+freezegun==0.3.9
+requests-mock==1.3.0
 strict-rfc3339==0.7