diff --git a/pkgs/tools/security/clamav/default.nix b/pkgs/tools/security/clamav/default.nix
index 16cd827b8f3..e9e6314f201 100644
--- a/pkgs/tools/security/clamav/default.nix
+++ b/pkgs/tools/security/clamav/default.nix
@@ -6,11 +6,11 @@
 
 stdenv.mkDerivation rec {
   pname = "clamav";
-  version = "0.105.1";
+  version = "1.0.0";
 
   src = fetchurl {
     url = "https://www.clamav.net/downloads/production/${pname}-${version}.tar.gz";
-    sha256 = "sha256-0rwWN024iablpqxA+MbnACVKA5rKpTaIWgnu6kuFKfY=";
+    hash = "sha256-vaObuFaQLm3WB36jE6Pri+zNSH4AgqlZF4d/Kymc2G4=";
   };
 
   patches = [