diff --git a/Resources/Audio/Machines/airlock_close.ogg b/Resources/Audio/Machines/airlock_close.ogg
index bd928cad8b..5da73f770e 100644
Binary files a/Resources/Audio/Machines/airlock_close.ogg and b/Resources/Audio/Machines/airlock_close.ogg differ
diff --git a/Resources/Audio/Machines/airlock_open.ogg b/Resources/Audio/Machines/airlock_open.ogg
index d47c40d3fc..55cafa974f 100644
Binary files a/Resources/Audio/Machines/airlock_open.ogg and b/Resources/Audio/Machines/airlock_open.ogg differ
diff --git a/Resources/Audio/Machines/license.txt b/Resources/Audio/Machines/license.txt
index ad8dc089d3..2ba044691c 100644
--- a/Resources/Audio/Machines/license.txt
+++ b/Resources/Audio/Machines/license.txt
@@ -13,3 +13,5 @@ vending_jingle.ogg made by github.com/hubismal licensed under CC-BY-3.0
 lightswitch.ogg taken from https://github.com/Skyrat-SS13/Skyrat-tg/blob/3f6099bbc3c2afdc609bf1991c2f06297a0f13c2/modular_skyrat/modules/aesthetics/lightswitch/sound/lightswitch.ogg under CC-BY-SA 3.0
 
 reclaimer_startup.ogg - https://freesound.org/people/cmorris035/sounds/319152/, Woodchipper Start (heavy machine) 02.wav CC0 (by cmorris035)
+
+airlock_open.ogg and airlock_close.ogg are from: https://github.com/tgstation/tgstation/tree/5f5002b21253354c20ea224be3f604d79299b37e/sound/machines