diff --git a/build.json b/build.json
index 0c23f77e..d58450c9 100644
--- a/build.json
+++ b/build.json
@@ -1,7 +1,7 @@
 {
   "variable": {
     "PYTHON_VERSION": {
-      "default": "3.10.10"
+      "default": "3.9.13"
     },
     "PGSQL_VERSION": {
       "default": "15"