diff --git a/pkgs/applications/editors/o/default.nix b/pkgs/applications/editors/o/default.nix
index 20bb6e7ac02e..725907d97699 100644
--- a/pkgs/applications/editors/o/default.nix
+++ b/pkgs/applications/editors/o/default.nix
@@ -5,13 +5,13 @@
 
 buildGoModule rec {
   pname = "o";
-  version = "2.55.1";
+  version = "2.56.0";
 
   src = fetchFromGitHub {
     owner = "xyproto";
     repo = "o";
     rev = "v${version}";
-    hash = "sha256-owueLd6kR/bDFxKI9QOUgriH63XRsEEpIFfp5aRTSbI=";
+    hash = "sha256-mUd2IfTSmpRIurhQy2BI8KAuQyYmBoqpvPnEvnFRc7Y=";
   };
 
   postPatch = ''