diff --git a/build.json b/build.json
index ee04e8f6..5657520d 100644
--- a/build.json
+++ b/build.json
@@ -7,7 +7,7 @@
       "default": "15"
     },
     "AIIDA_VERSION": {
-      "default": "2.4.0"
+      "default": "2.4.3"
     },
     "AIIDALAB_VERSION": {
       "default": "23.03.2"