diff --git a/.env b/.env
index 87d2293..2fb2dc1 100644
--- a/.env
+++ b/.env
@@ -10,11 +10,11 @@ NEOGO_VERSION=0.94.1
 MORPH_CHAIN_URL="fs.neo.org/dist/neo.morph.gz"
 
 # NeoFS InnerRing nodes
-IR_VERSION=0.18.0-28-g05b45270
+IR_VERSION=0.18.0-51-g66ddff34
 IR_IMAGE=nspccdev/neofs-ir
 
 # NeoFS Storage nodes
-NODE_VERSION=0.18.0-28-g05b45270
+NODE_VERSION=0.18.0-51-g66ddff34
 NODE_IMAGE=nspccdev/neofs-storage
 
 # HTTP Gate
diff --git a/services/ir/.ir.env b/services/ir/.ir.env
index 1c04462..9094c6d 100644
--- a/services/ir/.ir.env
+++ b/services/ir/.ir.env
@@ -9,7 +9,6 @@ NEOFS_IR_MAINNET_ENDPOINT_CLIENT=http://main_chain:30333
 NEOFS_IR_MAINNET_ENDPOINT_NOTIFICATION=ws://main_chain:30333/ws
 NEOFS_IR_MORPH_ENDPOINT_CLIENT=http://morph_chain:30333
 NEOFS_IR_MORPH_ENDPOINT_NOTIFICATION=ws://morph_chain:30333/ws
-NEOFS_IR_TIMERS_EPOCH=300
 NEOFS_IR_TIMERS_EMIT=300
 NEOFS_IR_TIMERS_STOP_ESTIMATION_DIV=4
 NEOFS_IR_TIMERS_COLLECT_BASIC_INCOME_DIV=2