diff --git a/pkgs/servers/mail/mailpit/source.nix b/pkgs/servers/mail/mailpit/source.nix
index cf45c132f677..f6b15cb7f686 100644
--- a/pkgs/servers/mail/mailpit/source.nix
+++ b/pkgs/servers/mail/mailpit/source.nix
@@ -1,6 +1,6 @@
 {
-  version = "1.20.4";
-  hash = "sha256-YvVaKNd7e+NHgRaIzzjSj2Jv4FowGJSwiPzdN2viQdk=";
-  npmDepsHash = "sha256-9/55zhRLMxo51vuLcCMGiJ9VPvUF1cSm8HhvDn2UnQo=";
-  vendorHash = "sha256-peE8VzgzQeawajk+bndO8lJZEGpCO17003dD90c9Xfg=";
+  version = "1.21.0";
+  hash = "sha256-u2mQfqfBfSV716FlGJyFJoRBtTs+WprM/X8i5RLuhZ0=";
+  npmDepsHash = "sha256-0PjJkGsIpnYVSUpwgtrqWVFMI9Lpjo0j7aprtFvePWQ=";
+  vendorHash = "sha256-2qqsYYyykmbnnyLHAk4/1HUps7XVQ5ve+niaayb/VQ0=";
 }