diff --git a/requirements.txt b/requirements.txt
index 7795505..dd2402b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,5 +5,5 @@ nose2==0.6.5
 numpy==1.11.3
 pandas==0.19.2
 parsimonious==0.7.0
-pyeda==0.28.0
 sympy==1.0
+traces==0.3.1