diff --git a/pxtarget.json b/pxtarget.json
index b29ef44f..e039144b 100644
--- a/pxtarget.json
+++ b/pxtarget.json
@@ -431,5 +431,5 @@
         }
     },
     "uploadDocs": false,
-    "uploadApiStringsBranchRx": "^(master|v[2-9].\\d+\\.\\d+)$"
+    "uploadApiStringsBranchRx": "^(master|v[2-9]\\.\\d+\\.\\d+)$"
 }
\ No newline at end of file