diff --git a/params/bootnodes.go b/params/bootnodes.go
index eb930a3f5b..a1cbbb6a6d 100644
--- a/params/bootnodes.go
+++ b/params/bootnodes.go
@@ -22,8 +22,6 @@ import "github.com/ethereum/go-ethereum/common"
 // the main Ethereum network.
 var MainnetBootnodes = []string{
 	// Ethereum Foundation Go Bootnodes
-	"enode://d860a01f9722d78051619d1e2351aba3f43f943f6f00718d1b9baa4101932a1f5011f16bb2b1bb35db20d6fe28fa0bf09636d26a87d31de9ec6203eeedb1f666@18.138.108.67:30303",   // bootnode-aws-ap-southeast-1-001
-	"enode://22a8232c3abc76a16ae9d6c3b164f98775fe226f0917b0ca871128a74a8e9630b458460865bab457221f1d448dd9791d24c4e5d88786180ac185df813a68d4de@3.209.45.79:30303",     // bootnode-aws-us-east-1-001
 	"enode://ca6de62fce278f96aea6ec5a2daadb877e51651247cb96ee310a318def462913b653963c155a0ef6c7d50048bba6e6cea881130857413d9f50a621546b590758@34.255.23.113:30303",   // bootnode-aws-eu-west-1-001
 	"enode://279944d8dcd428dffaa7436f25ca0ca43ae19e7bcf94a8fb7d1641651f92d121e972ac2e8f381414b80cc8e5555811c2ec6e1a99bb009b3f53c4c69923e11bd8@35.158.244.151:30303",  // bootnode-aws-eu-central-1-001
 	"enode://8499da03c47d637b20eee24eec3c356c9a2e6148d6fe25ca195c7949ab8ec2c03e3556126b0d7ed644675e78c4318b08691b7b57de10e5f0d40d05b09238fa0a@52.187.207.27:30303",   // bootnode-azure-australiaeast-001
@@ -49,14 +47,12 @@ var RinkebyBootnodes = []string{
 // Görli test network.
 var GoerliBootnodes = []string{
 	// Upstream bootnodes
-	"enode://46add44b9f13965f7b9875ac6b85f016f341012d84f975377573800a863526f4da19ae2c620ec73d11591fa9510e992ecc03ad0751f53cc02f7c7ed6d55c7291@94.237.54.114:30313",
 	"enode://b5948a2d3e9d486c4d75bf32713221c2bd6cf86463302339299bd227dc2e276cd5a1c7ca4f43a0e9122fe9af884efed563bd2a1fd28661f3b5f5ad7bf1de5949@18.218.250.66:30303",
 
 	// Ethereum Foundation bootnode
 	"enode://a61215641fb8714a373c80edbfa0ea8878243193f57c96eeb44d0bc019ef295abd4e044fd619bfc4c59731a73fb79afe84e9ab6da0c743ceb479cbb6d263fa91@3.11.147.67:30303",
 
 	// Goerli Initiative bootnodes
-	"enode://807b37ee4816ecf407e9112224494b74dd5933625f655962d892f2f0f02d7fbbb3e2a94cf87a96609526f30c998fd71e93e2f53015c558ffc8b03eceaf30ee33@51.15.119.157:30303",
 }
 
 // YoloV3Bootnodes are the enode URLs of the P2P bootstrap nodes running on the
diff --git a/params/bootnodes_kotti.go b/params/bootnodes_kotti.go
index 7f2247d518..5b1070c943 100644
--- a/params/bootnodes_kotti.go
+++ b/params/bootnodes_kotti.go
@@ -18,7 +18,6 @@ package params
 // KottiBootnodes are the enode URLs of the P2P bootstrap nodes running on the
 // Kotti test network.
 var KottiBootnodes = []string{
-	"enode://6c9a052c01bb9995fa53bebfcdbc17733fe90708270d0e6d8e38dc57b32e1dbe8c287590b634ee9753b94ba302f411c96519c7fa07df0df6a6848149d819b2c5@51.15.70.7:41235",  // @q9f polis
 	"enode://93b12383c74c39b67afa99a7ff44ce250fe94295fa1fc087465cc4fe2d0b33b91a8d8cabe03b250104a9096aa0e06bcde5f95665a5bd9f890edd2ab33e16ae47@51.15.41.19:30303", // @q9f ethstats
 }
 
diff --git a/params/bootnodes_mordor.go b/params/bootnodes_mordor.go
index 7928f6d672..5fffa9ac63 100644
--- a/params/bootnodes_mordor.go
+++ b/params/bootnodes_mordor.go
@@ -21,8 +21,6 @@ package params
 // https://github.com/etclabscore/mordor/blob/master/static-nodes.json
 var MordorBootnodes = []string{
 	"enode://534d18fd46c5cd5ba48a68250c47cea27a1376869755ed631c94b91386328039eb607cf10dd8d0aa173f5ec21e3fb45c5d7a7aa904f97bc2557e9cb4ccc703f1@51.158.190.99:30303", // @q9f lyrae
-	"enode://15b6ae4e9e18772f297c90d83645b0fbdb56667ce2d747d6d575b21d7b60c2d3cd52b11dec24e418438caf80ddc433232b3685320ed5d0e768e3972596385bfc@51.158.191.43:41235", // @q9f mizar
-	"enode://8fa15f5012ac3c47619147220b7772fcc5db0cb7fd132b5d196e7ccacb166ac1fcf83be1dace6cd288e288a85e032423b6e7e9e57f479fe7373edea045caa56b@176.9.51.216:31355",  // @q9f ceibo
 	"enode://34c14141b79652afc334dcd2ba4d8047946246b2310dc8e45737ebe3e6f15f9279ca4702b90bc5be12929f6194e2c3ce19a837b7fec7ebffcee9e9fe4693b504@176.9.51.216:31365",  // @q9f ceibo
 }