diff --git a/config.nims b/config.nims
index eacae8d..d816c1a 100644
--- a/config.nims
+++ b/config.nims
@@ -1,2 +1,9 @@
 
 switch("define", "libp2p_pki_schemes=secp256k1")
+# begin Nimble config (version 2)
+when withDir(thisDir(), system.fileExists("nimble.paths")):
+  include "nimble.paths"
+# end Nimble config
+
+when (NimMajor, NimMinor) >= (2, 0):
+  --mm:refc