diff --git a/requirements.txt b/requirements.txt
index 5f37946de49df5161926a3c3a595583051efa301..2f1e27967431c6d3624b6b4821b5a94bb8cff44d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,7 +1,7 @@
-numpy==1.14.3
-scipy==1.1.0
-matplotlib==2.2.2
-PyQt5==5.10.1
-vtk==8.1.1
-pandas==0.23.0
-cython==0.28.2
+numpy
+scipy
+matplotlib
+PyQt5
+vtk
+pandas
+cython