diff --git a/requirements.txt b/requirements.txt
index 8f6d5c8..8a496ce 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-Keras>=2.0.3
+Keras==2.0.3
 numpy>=1.12.1
-pandas>=0.19.2
-matplotlib>=2.0.0
-tensorflow>=1.0.0
-Pillow>=4.1.0
-gym>=0.8.1
+pandas==0.19.2
+matplotlib==2.0.0
+tensorflow==1.0.0
+Pillow==4.1.0
+gym==0.8.1
 h5py
-scikit-image>=0.13.0
+scikit-image==0.13.0