diff --git a/packages/lexical.nix b/packages/lexical.nix
index 1201878..4d51334 100644
--- a/packages/lexical.nix
+++ b/packages/lexical.nix
@@ -2,7 +2,7 @@
 
 let
   erlang = pkgs.beam_nox.interpreters.erlang_26;
-  beamPackages = pkgs.beam.packagesWith erlang;
+  beamPackages = pkgs.beam_nox.packagesWith erlang;
 in
 beamPackages.mixRelease rec {
   pname = "lexical";
diff --git a/packages/weewx-proxy.nix b/packages/weewx-proxy.nix
index f68c8c3..db00138 100644
--- a/packages/weewx-proxy.nix
+++ b/packages/weewx-proxy.nix
@@ -1,7 +1,7 @@
 { pkgs, lib, ... }:
 
 let
-  erlang = pkgs.beam_nox.interpreters.erlangR26;
+  erlang = pkgs.beam_nox.interpreters.erlang_26;
   beamPackages = pkgs.beam_nox.packagesWith erlang;
 in
 beamPackages.mixRelease rec {