diff --git a/nixos/modules/services/network-filesystems/kubo.nix b/nixos/modules/services/network-filesystems/kubo.nix
index 87d83971c706..8c1053f3a55a 100644
--- a/nixos/modules/services/network-filesystems/kubo.nix
+++ b/nixos/modules/services/network-filesystems/kubo.nix
@@ -330,8 +330,8 @@ in
     environment.variables.IPFS_PATH = fakeKuboRepo;
 
     # https://github.com/quic-go/quic-go/wiki/UDP-Buffer-Sizes
-    boot.kernel.sysctl."net.core.rmem_max" = lib.mkDefault 2500000;
-    boot.kernel.sysctl."net.core.wmem_max" = lib.mkDefault 2500000;
+    boot.kernel.sysctl."net.core.rmem_max" = lib.mkDefault 7500000;
+    boot.kernel.sysctl."net.core.wmem_max" = lib.mkDefault 7500000;
 
     programs.fuse = lib.mkIf cfg.autoMount {
       userAllowOther = true;