diff --git a/Cargo.toml b/Cargo.toml
index cb8152d0..813cf68b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,10 +24,10 @@ doc = false
 async-trait = "0.1.51"
 base16 = "0.2.1"
 base64 = "0.13.0"
-casper-execution-engine = "3.1.0"
-casper-node = "1.4.15"
-casper-hashing = "1.4.3"
-casper-types = {version = "1.6.0", features = ["std"]}
+casper-execution-engine = "4.0.0"
+casper-node = "=1.4.15-alt"
+casper-hashing = "1.4.4"
+casper-types = {version = "2.0.0", features = ["std"]}
 clap = "2"
 humantime = "2"
 jsonrpc-lite = "0.5.0"