diff --git a/coin/product_dependencies.yaml b/coin/product_dependencies.yaml
index 4212b9b2e24..a658f8103be 100644
--- a/coin/product_dependencies.yaml
+++ b/coin/product_dependencies.yaml
@@ -1,4 +1,4 @@
 dependencies:
   ../../qt/qt5.git:
-    ref: "6.5"
+    ref: "6.6"