diff --git a/nix/packages.nix b/nix/packages.nix
index 66be96121..69026ffe2 100644
--- a/nix/packages.nix
+++ b/nix/packages.nix
@@ -17,7 +17,7 @@
 with pkgs;
 [
   # Invidious dependencies
-  crystal_1_19
+  crystal_1_21
   sqlite
   shards
   crystalline # LSP, is not that good, but still useful.