diff --git a/data/moodle-contributors.txt b/data/moodle-contributors.txt
index 6536235e66..5969b8b509 100644
--- a/data/moodle-contributors.txt
+++ b/data/moodle-contributors.txt
@@ -583,6 +583,7 @@ Karjun
 Karl
 KarlReyesCatalyst
 Karmali
+Karolczuk
 Kassaei
 Katalin
 Kateryna
@@ -785,6 +786,7 @@ Morris
 MorrisR2
 Morton
 Mouneyrac
+Mozgunova
 Mudrak
 Mudrák
 Muhammad
@@ -1098,6 +1100,7 @@ Syed
 Syxton
 Szarvas
 Szeremeta
+Szymon
 Sébastien
 Škoda
 Tabares
@@ -1491,6 +1494,7 @@ prateeksachan
 ptrkmkl
 rajandangi
 rajesh
+rajutm25
 ralf-bonn
 raortegar
 rcantada