diff --git a/nix/README.md b/nix/README.md
index c01e2fed0c..ec3952f4d7 100644
--- a/nix/README.md
+++ b/nix/README.md
@@ -94,3 +94,10 @@ export NIX_IGNORE_SYMLINK_STORE=1
 Add it to your `.bashrc` or any other shell config file.
 
 __NOTE__: Your old `/nix` directory will end up in `/Users/Shared/Relocated Items/Security/nix` after OS upgrade.
+
+### Cache Downloads Timing Out
+
+If copying from Nix Cache times out you can adjust the timeout by changing [`nix/nix.conf`](/nix/nix.conf):
+```conf
+stalled-download-timeout = 9001
+```
diff --git a/nix/nix.conf b/nix/nix.conf
index a4e2f9930c..c94a73b589 100644
--- a/nix/nix.conf
+++ b/nix/nix.conf
@@ -1,5 +1,7 @@
 # NOTE: If you are in Asia you might want to add https://nix-cache-cn.status.im/ to substituters
 substituters = https://nix-cache.status.im/ https://cache.nixos.org/
 trusted-public-keys = nix-cache.status.im-1:x/93lOfLU+duPplwMSBR+OlY4+mo+dCN7n0mr4oPwgY= cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= nix-cache-cn.status.im:WUiOoTQQurm+rEL/yuAuU/a3TViDtMM9DCMgMx/KkOw= 
+# Some downloads are multiple GB, default is 5 minutes
+stalled-download-timeout = 600
 connect-timeout = 10
 max-jobs = auto