diff --git a/contributors.txt b/contributors.txt
index 8631af4c..bdbb24af 100644
--- a/contributors.txt
+++ b/contributors.txt
@@ -1,7 +1,6 @@
 Hayabusa was possible thanks to the following people (in alphabetical order):
 
 Akira Nishikawa (@nishikawaakira): Previous lead developer, core hayabusa rule support, etc...
-DustInDark(@hitenkoku): Core developer, project management, sigma count implementation, rule creation, countless feature additions and fixes, etc…
 Garigariganzy (@garigariganzy31): Developer, event ID statistics implementation, etc... 
 ItiB (@itiB_S144) :  Core developer, sigmac hayabusa backend, rule creation, etc...
 James Takai / hachiyone(@hach1yon): Current lead developer, tokio multi-threading, sigma aggregation logic, sigmac backend, rule creation, etc…
@@ -17,7 +16,6 @@ Nishikawa Akira (@nishikawaakira): Lead Developer
 kazuminn (@k47_um1n): Core Developer
 itiB (@itiB_S144): Core Developer
 James Takai / hachiyone (@hach1yon): Core Developer
-DustInDark (@hitenkoku): Core Developer
 garigariganzy (@garigariganzy31): Developer
 7itoh (@yNitocrypto22): Developer
 dai (@__da13__): Developer