diff --git a/krebs/update-nixpkgs-unstable.sh b/krebs/update-nixpkgs-unstable.sh
index 592023f20..ab04914c1 100755
--- a/krebs/update-nixpkgs-unstable.sh
+++ b/krebs/update-nixpkgs-unstable.sh
@@ -2,7 +2,7 @@
 dir=$(dirname $0)
 oldrev=$(cat $dir/nixpkgs-unstable.json | jq -r .rev | sed 's/\(.\{7\}\).*/\1/')
 nix-shell -p nix-prefetch-git --run 'nix-prefetch-git \
-  --url https://github.com/NixOS/nixpkgs-channels \
+  --url https://github.com/NixOS/nixpkgs \
   --rev refs/heads/nixos-unstable' \
 > $dir/nixpkgs-unstable.json
 newrev=$(cat $dir/nixpkgs-unstable.json | jq -r .rev | sed 's/\(.\{7\}\).*/\1/')
diff --git a/krebs/update-nixpkgs.sh b/krebs/update-nixpkgs.sh
index bb4b54793..b0ffb6adc 100755
--- a/krebs/update-nixpkgs.sh
+++ b/krebs/update-nixpkgs.sh
@@ -2,7 +2,7 @@
 dir=$(dirname $0)
 oldrev=$(cat $dir/nixpkgs.json | jq -r .rev | sed 's/\(.\{7\}\).*/\1/')
 nix-shell -p nix-prefetch-git --run 'nix-prefetch-git \
-  --url https://github.com/NixOS/nixpkgs-channels \
+  --url https://github.com/NixOS/nixpkgs \
   --rev refs/heads/nixos-20.03' \
 > $dir/nixpkgs.json
 newrev=$(cat $dir/nixpkgs.json | jq -r .rev | sed 's/\(.\{7\}\).*/\1/')