diff --git a/requirements-freeze.txt b/requirements-freeze.txt
index cd55cfd..19701a7 100644
--- a/requirements-freeze.txt
+++ b/requirements-freeze.txt
@@ -27,6 +27,7 @@ kiwisolver==1.3.1
 MarkupSafe==1.1.1
 matplotlib==3.5.3
 numpy==1.23.3
+ProcessOptimizer[browniebee]==0.7.7
 openapi-spec-validator==0.2.9
 packaging==20.9
 Pillow==9.0.1