diff --git a/requirements.txt b/requirements.txt
index d045978..d7392f0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,5 @@
 attrs==21.2.0
 certifi==2021.10.8
-cplex==22.1.1.0
 Deprecated==1.2.13
 dimod==0.12.3
 docplex==2.23.222