diff --git a/README.md b/README.md
index 0bc3486fb..863e79a2c 100644
--- a/README.md
+++ b/README.md
@@ -30,23 +30,17 @@ Then:
 cd nimbus
 
 # Prep environment
-make
+make update
 ./env.sh bash
 
-# You're now in a shell environment that has the right Nim version available
+# You're now in a shell environment that has the right Nim version available.
+# Head over to the vendor repo where you should have a checkout of this project
+cd vendor/nim-beacon-chain
 
-cd..
-
-git clone https://github.com/status-im/nim-beacon-chain
-cd nim-beacon-chain
-
-# Build binaries and run test suite
-nimble build
-nimble test
+# You can now run the test suite:
+nim c -d:release -r tests/all_tests
 ```
 
-This should produce some passing tests.
-
 ## Beacon node simulation
 
 The beacon node simulation is will create a full peer-to-peer network of beacon nodes and validators, and run the beacon chain in real time. To change network parameters such as shard and validator counts, see [start.sh](tests/simulation/start.sh).