diff --git a/mix.nix b/mix.nix
index 8779454..610a7dc 100644
--- a/mix.nix
+++ b/mix.nix
@@ -59,6 +59,19 @@ let
 
       beamDeps = [];
     };
+
+    uuid = buildMix rec {
+      name = "uuid";
+      version = "1.1.8";
+
+      src = fetchHex {
+        pkg = "uuid";
+        version = "${version}";
+        sha256 = "c790593b4c3b601f5dc2378baae7efaf5b3d73c4c6456ba85759905be792f2ac";
+      };
+
+      beamDeps = [];
+    };
   };
 in self