diff --git a/versions.nix b/versions.nix
index 6030315c..af4fe91c 100644
--- a/versions.nix
+++ b/versions.nix
@@ -5,6 +5,7 @@
     cxx11Abi = true;
     systems = [ "x86_64-linux" ];
     bundleBuild = true;
+    sourceBuild = true;
   }
   {
     torchVersion = "2.8";
@@ -43,6 +44,7 @@
     cxx11Abi = true;
     systems = [ "x86_64-linux" ];
     bundleBuild = true;
+    sourceBuild = true;
   }
   {
     torchVersion = "2.8";
@@ -50,6 +52,7 @@
     cxx11Abi = true;
     systems = [ "x86_64-linux" ];
     bundleBuild = true;
+    sourceBuild = true;
   }
   {
     torchVersion = "2.8";
@@ -64,6 +67,7 @@
     cxx11Abi = true;
     systems = [ "x86_64-linux" ];
     bundleBuild = true;
+    sourceBuild = true;
   }
   {
     torchVersion = "2.9";
@@ -104,6 +108,7 @@
     cxx11Abi = true;
     systems = [ "x86_64-linux" ];
     bundleBuild = true;
+    sourceBuild = true;
   }
   {
     torchVersion = "2.9";
@@ -111,6 +116,7 @@
     cxx11Abi = true;
     systems = [ "x86_64-linux" ];
     bundleBuild = true;
+    sourceBuild = true;
   }
   {
     torchVersion = "2.9";