diff --git a/web/data/versions.json b/web/data/versions.json
index 66796e47d7e95c9ca946840d3747d8a1f150a250..30c72701bc86045870bd436b57d9fcbe37a13004 100644
--- a/web/data/versions.json
+++ b/web/data/versions.json
@@ -17,7 +17,7 @@
     "vtk": "8.1.2",
     "petsc": "3.11.2",
     "qt": "5.12.4",
-    "python": "3.7"
+    "python": "3.6"
   },
   "tested_version": {
     "vtk": "8.2.0",