diff --git a/.env b/.env
index b042b13..a893bf7 100644
--- a/.env
+++ b/.env
@@ -7,7 +7,7 @@ CHAIN_URL="https://github.com/nspcc-dev/neofs-contract/releases/download/v0.3.1/
 NEOGO_VERSION=0.92.0
 
 # NeoGo sidechain
-MORPH_CHAIN_URL="https://github.com/nspcc-dev/neofs-contract/releases/download/v0.3.1/devenv_sidechain.gz"
+MORPH_CHAIN_URL="https://github.com/nspcc-dev/neofs-contract/releases/download/v0.3.1/devenv_sidechain_64MiB.gz"
 
 # NeoFS InnerRing nodes
 IR_VERSION=0.14.2