diff --git a/requirements.txt b/requirements.txt
index 54e28725..4d2cab1c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,12 +1,13 @@
 futures
 intervaltree
 numpy
+parse
 progressbar2
 pyjson5
+pytest
 pyyaml
 scipy
-sympy
-yapf==0.24.0
-textx
-pytest
 simplejson
+sympy
+textx
+yapf==0.24.0