diff --git a/requirements.txt b/requirements.txt
index 4d8f8c4..eb5219b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,5 @@
 scancode-toolkit
 typecode_libmagic
 XlsxWriter
-fosslight_util>=1.1.0
+fosslight_util>=1.3.3
 PyYAML