diff --git a/nix/build.nix b/nix/build.nix
index 1a115f7d..9a3a5997 100644
--- a/nix/build.nix
+++ b/nix/build.nix
@@ -97,7 +97,7 @@ beamPackages.mixRelease {
 
   meta = {
     description = "Towerops - Phoenix LiveView SNMP monitoring platform";
-    license = lib.licenses.proprietary;
+    license = lib.licenses.unfree;
     platforms = lib.platforms.unix;
   };
 }
diff --git a/nix/c-nif.nix b/nix/c-nif.nix
index 0f9f1c94..a0c502ce 100644
--- a/nix/c-nif.nix
+++ b/nix/c-nif.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "C NIF for SNMP MIB resolution in Towerops";
-    license = lib.licenses.proprietary;
+    license = lib.licenses.unfree;
     platforms = lib.platforms.unix;
   };
 }