diff --git a/version.php b/version.php
index 8a7b8abfe78..b5bb538ccb3 100644
--- a/version.php
+++ b/version.php
@@ -29,9 +29,9 @@
 
 defined('MOODLE_INTERNAL') || die();
 
-$version  = 2021052500.51;              // YYYYMMDD      = weekly release date of this DEV branch.
+$version  = 2021052500.52;              // YYYYMMDD      = weekly release date of this DEV branch.
                                         //         RR    = release increments - 00 in DEV branches.
                                         //           .XX = incremental changes.
-$release  = '4.0dev (Build: 20210108)'; // Human-friendly version name
+$release  = '4.0dev (Build: 20210115)'; // Human-friendly version name
 $branch   = '400';                      // This version's branch.
 $maturity = MATURITY_ALPHA;             // This version's maturity level.