diff --git a/matrix.mjs b/matrix.mjs
index fcb702e..a2f4331 100644
--- a/matrix.mjs
+++ b/matrix.mjs
@@ -4,7 +4,7 @@ const matrix = [];
 const alreadyAddedVersion = new Set();
 
 for (const swVersion of Object.keys(swToPHP).reverse()) {
-    if (swVersion.indexOf('6.6') !== 0 || swVersion.indexOf('RC') !== -1) {
+    if ((swVersion.indexOf('6.6') !== 0 && swVersion.indexOf('6.5.8') !== 0) || swVersion.indexOf('RC') !== -1) {
         continue;
     }