diff --git a/requirements.txt b/requirements.txt
index c412394..95a6f99 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,7 +2,7 @@ pyparsing
 scancode-toolkit>=32.0.2,==32.0.*
 scanoss
 XlsxWriter
-fosslight_util>=1.4.47
+fosslight_util~=1.4.47
 PyYAML
 wheel>=0.38.1
 intbitset