diff --git a/pkgs/development/interpreters/php/7.4.nix b/pkgs/development/interpreters/php/7.4.nix
index 79e736b30d5..e5c339e502d 100644
--- a/pkgs/development/interpreters/php/7.4.nix
+++ b/pkgs/development/interpreters/php/7.4.nix
@@ -4,8 +4,8 @@ let
   generic = (import ./generic.nix) _args;
 
   base = callPackage generic (_args // {
-    version = "7.4.20";
-    sha256 = "0d5ncz97y0271dsmz269wl4721vhq2fn6pmm9rxglc756p36pnha";
+    version = "7.4.21";
+    sha256 = "0al2697d5hwq0f39rgncl1pwfxzzpc0afmr0fjvw5qjpww163v1n";
   });
 
 in base.withExtensions ({ all, ... }: with all; ([