diff --git a/pkgs/top-level/php-packages.nix b/pkgs/top-level/php-packages.nix
index 47fe47a08b7..282e2d98523 100644
--- a/pkgs/top-level/php-packages.nix
+++ b/pkgs/top-level/php-packages.nix
@@ -16,10 +16,10 @@ let
   isPhp73 = pkgs.lib.versionAtLeast php.version "7.3";
 
   apcu = buildPecl {
-    version = "5.1.17";
+    version = "5.1.18";
     pname = "apcu";
 
-    sha256 = "14y7alvj5q17q1b544bxidavkn6i40cjbq2nv1m0k70ai5vv84bb";
+    sha256 = "0ayykd4hfvdzk7qnr5k6yq5scwf6rb2i05xscfv76q5dmkkynvfl";
 
     buildInputs = [ (if isPhp73 then pkgs.pcre2 else pkgs.pcre) ];
     doCheck = true;