diff --git a/requirements.txt b/requirements.txt
index 9363113..719ec08 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
-decorator
-enum34
-monotonic
-paho-mqtt
-sanji
-sh
-retrying
+decorator==4.0.10
+enum34==1.1.6
+monotonic==1.2
+paho-mqtt==1.2
+sanji==1.0.0
+sh==1.12.3
+retrying==1.3.3
diff --git a/tests/requirements.txt b/tests/requirements.txt
index 9874609..ce99a79 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -1,3 +1,3 @@
-flake8
-coveralls
-nose
+flake8==3.2.1
+coveralls==1.1
+nose==1.3.7