diff --git a/nemesis-generator/requirements.txt b/nemesis-generator/requirements.txt
index de524d20..e89f37e7 100644
--- a/nemesis-generator/requirements.txt
+++ b/nemesis-generator/requirements.txt
@@ -1,3 +1,3 @@
-PyYAML==6.0
+PyYAML==6.0.2
 symbol-sdk-python==3.0.7
 zenlog==1.1