diff --git a/pkgs/development/compilers/vyper/default.nix b/pkgs/development/compilers/vyper/default.nix
index 9306796beb03..a353798174a0 100644
--- a/pkgs/development/compilers/vyper/default.nix
+++ b/pkgs/development/compilers/vyper/default.nix
@@ -47,7 +47,7 @@ buildPythonPackage rec {
     setuptools-scm
   ];
 
-  pythonRelaxDeps = [ "semantic-version" ];
+  pythonRelaxDeps = [ "asttokens" "semantic-version" ];
 
   propagatedBuildInputs = [
     asttokens