diff --git a/pkgs/development/tools/misc/blackfire/php-probe.nix b/pkgs/development/tools/misc/blackfire/php-probe.nix
index 8a02f615730..97b5f9ed82c 100644
--- a/pkgs/development/tools/misc/blackfire/php-probe.nix
+++ b/pkgs/development/tools/misc/blackfire/php-probe.nix
@@ -14,14 +14,15 @@ let
   soFile = {
     "7.3" = "blackfire-20180731";
     "7.4" = "blackfire-20190902";
+    "8.0" = "blackfire-20200930";
   }.${lib.versions.majorMinor php.version} or (throw "Unsupported PHP version.");
 in stdenv.mkDerivation rec {
   pname = "php-blackfire";
-  version = "1.44.0";
+  version = "1.46.4";
 
   src = fetchurl {
     url = "https://packages.blackfire.io/debian/pool/any/main/b/blackfire-php/blackfire-php_${version}_amd64.deb";
-    sha256 = "15y1244bbs07i7rg6cy8kynp1may4mbkmmwbxgq8q5zma3ldc8ci";
+    sha256 = "1p46zi1hh9calkcfgqz60c6rdi9i7i16ylj84iibi6k0pc690fjy";
   };
 
   nativeBuildInputs = [