diff --git a/build-aux/snap/snapcraft.yaml b/build-aux/snap/snapcraft.yaml
index f0f93168b..284c1b955 100644
--- a/build-aux/snap/snapcraft.yaml
+++ b/build-aux/snap/snapcraft.yaml
@@ -53,6 +53,7 @@ parts:
   qet-tb-generator:
     plugin: python
     source: https://github.com/raulroda/qet_tb_generator-plugin.git
+    source-tag: v1.31
     python-packages: [PySimpleGUI]
     stage-packages: 
       - python3-lxml