diff --git a/substrate/executor/src/wasm_executor.rs b/substrate/executor/src/wasm_executor.rs
index 828b6f1221..0a61a5b099 100644
--- a/substrate/executor/src/wasm_executor.rs
+++ b/substrate/executor/src/wasm_executor.rs
@@ -165,9 +165,9 @@ impl_function_executor!(this: FunctionExecutor<'e, E>,
 		let key = this.memory.get(key_data, key_len as usize).map_err(|_| DummyUserError)?;
 		let value = this.memory.get(value_data, value_len as usize).map_err(|_| DummyUserError)?;
 		if let Some(preimage) = this.hash_lookup.get(&key) {
-			println!("*** Setting storage: %{} -> {}   [k={}]", ascii_format(&preimage), HexDisplay::from(&value), HexDisplay::from(&key));
+			info!(target: "wasm-trace", "*** Setting storage: %{} -> {}   [k={}]", ascii_format(&preimage), HexDisplay::from(&value), HexDisplay::from(&key));
 		} else {
-			println!("*** Setting storage:  {} -> {}   [k={}]", ascii_format(&key), HexDisplay::from(&value), HexDisplay::from(&key));
+			info!(target: "wasm-trace", "*** Setting storage:  {} -> {}   [k={}]", ascii_format(&key), HexDisplay::from(&value), HexDisplay::from(&key));
 		}
 		this.ext.set_storage(key, value);
 	},
@@ -176,9 +176,9 @@ impl_function_executor!(this: FunctionExecutor<'e, E>,
 		let value = this.ext.storage(&key).map_err(|_| DummyUserError)?;
 
 		if let Some(preimage) = this.hash_lookup.get(&key) {
-			println!("    Getting storage: %{} == {}   [k={}]", ascii_format(&preimage), HexDisplay::from(&value), HexDisplay::from(&key));
+			info!(target: "wasm-trace", "    Getting storage: %{} == {}   [k={}]", ascii_format(&preimage), HexDisplay::from(&value), HexDisplay::from(&key));
 		} else {
-			println!("    Getting storage:  {} == {}   [k={}]", ascii_format(&key), HexDisplay::from(&value), HexDisplay::from(&key));
+			info!(target: "wasm-trace", "    Getting storage:  {} == {}   [k={}]", ascii_format(&key), HexDisplay::from(&value), HexDisplay::from(&key));
 		}
 
 		let offset = this.heap.allocate(value.len() as u32) as u32;
@@ -191,9 +191,9 @@ impl_function_executor!(this: FunctionExecutor<'e, E>,
 		let key = this.memory.get(key_data, key_len as usize).map_err(|_| DummyUserError)?;
 		let value = this.ext.storage(&key).map_err(|_| DummyUserError)?;
 		if let Some(preimage) = this.hash_lookup.get(&key) {
-			println!("    Getting storage: %{} == {}   [k={}]", ascii_format(&preimage), HexDisplay::from(&value), HexDisplay::from(&key));
+			info!(target: "wasm-trace", "    Getting storage: %{} == {}   [k={}]", ascii_format(&preimage), HexDisplay::from(&value), HexDisplay::from(&key));
 		} else {
-			println!("    Getting storage:  {} == {}   [k={}]", ascii_format(&key), HexDisplay::from(&value), HexDisplay::from(&key));
+			info!(target: "wasm-trace", "    Getting storage:  {} == {}   [k={}]", ascii_format(&key), HexDisplay::from(&value), HexDisplay::from(&key));
 		}
 		let value = &value[value_offset as usize..];
 		let written = ::std::cmp::min(value_len as usize, value.len());
diff --git a/substrate/polkadot-runtime/wasm/Cargo.toml b/substrate/polkadot-runtime/wasm/Cargo.toml
index b606dd6d83..054d05c658 100644
--- a/substrate/polkadot-runtime/wasm/Cargo.toml
+++ b/substrate/polkadot-runtime/wasm/Cargo.toml
@@ -7,11 +7,11 @@ authors = ["Parity Technologies <admin@parity.io>"]
 crate-type = ["cdylib"]
 
 [dependencies]
-substrate-codec = { path = "../../codec", version = "0.1", default-features = false }
-substrate-runtime-std = { path = "../../runtime-std", version = "0.1", default-features = false }
-substrate-runtime-io = { path = "../../runtime-io", version = "0.1", default-features = false }
-substrate-primitives = { path = "../../primitives", version = "0.1", default-features = false }
-polkadot-primitives = { path = "../../polkadot-primitives", version = "0.1", default-features = false }
+substrate-codec = { path = "../../codec", default-features = false }
+substrate-runtime-std = { path = "../../runtime-std", default-features = false }
+substrate-runtime-io = { path = "../../runtime-io", default-features = false }
+substrate-primitives = { path = "../../primitives", default-features = false }
+polkadot-primitives = { path = "../../polkadot-primitives", default-features = false }
 
 [features]
 default = []