diff --git a/krebs/3modules/github-known-hosts.nix b/krebs/3modules/github-known-hosts.nix
index d30b41ee5..7bdf5bb7c 100644
--- a/krebs/3modules/github-known-hosts.nix
+++ b/krebs/3modules/github-known-hosts.nix
@@ -51,15 +51,9 @@
       "52.78.231.108"
       "13.234.176.102"
       "13.234.210.38"
-      "13.229.188.59"
-      "13.250.177.223"
-      "52.74.223.119"
       "13.236.229.21"
       "13.237.44.5"
       "52.64.108.95"
-      "18.228.52.138"
-      "18.228.67.229"
-      "18.231.5.6"
       "20.201.28.151"
       "20.205.243.166"
       "102.133.202.242"
@@ -70,15 +64,9 @@
       "13.125.114.27"
       "3.7.2.84"
       "3.6.106.81"
-      "18.140.96.234"
-      "18.141.90.153"
-      "18.138.202.180"
       "52.63.152.235"
       "3.105.147.174"
       "3.106.158.203"
-      "54.233.131.104"
-      "18.231.104.233"
-      "18.228.167.86"
       "20.201.28.152"
       "20.205.243.160"
       "102.133.202.246"