diff --git a/requirements.txt b/requirements.txt
index f4219d2..32b37b6 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 connexion==2.7.0
 connexion[swagger-ui]
 Flask==1.1.2
-ProcessOptimizer==0.5.1
+ProcessOptimizer==0.6.1
 json-tricks==3.15.5
\ No newline at end of file