diff --git a/pkgs/applications/networking/datovka/default.nix b/pkgs/applications/networking/datovka/default.nix
index c311a79f3bdc..da0b4ca2e495 100644
--- a/pkgs/applications/networking/datovka/default.nix
+++ b/pkgs/applications/networking/datovka/default.nix
@@ -12,11 +12,11 @@
 
 mkDerivation rec {
   pname = "datovka";
-  version = "4.25.0";
+  version = "4.26.0";
 
   src = fetchurl {
     url = "https://gitlab.nic.cz/datovka/datovka/-/archive/v${version}/datovka-v${version}.tar.gz";
-    sha256 = "sha256-Snm9dDtHZQsx4T82tML77auBTb1lvITUOfL+kmhY4es=";
+    sha256 = "sha256-pEdjh/c4vhirj2R9bYDdi2FL7N9x67kTOyfXiJDzMKE=";
   };
 
   buildInputs = [ libdatovka qmake qtbase qtsvg libxml2 qtwebsockets ];