diff --git a/OpenShadingLanguage.changes b/OpenShadingLanguage.changes
index 87e7d2d..057a99d 100644
--- a/OpenShadingLanguage.changes
+++ b/OpenShadingLanguage.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Tue Jan 16 19:38:15 UTC 2024 - Marcus Rueckert <mrueckert@suse.de>
+
+- Add missing Qt6 BuildRequires to enable osltoy 
+
 -------------------------------------------------------------------
 Tue Jan 16 11:01:20 UTC 2024 - Marcus Rueckert <mrueckert@suse.de>
 
diff --git a/OpenShadingLanguage.spec b/OpenShadingLanguage.spec
index e475ffa..31c7965 100644
--- a/OpenShadingLanguage.spec
+++ b/OpenShadingLanguage.spec
@@ -34,6 +34,11 @@ Source1:        https://creativecommons.org/licenses/by/3.0/legalcode.txt#/CC-BY
 BuildRequires:  OpenEXR-devel >= 2.3
 BuildRequires:  OpenImageIO >= 2.2
 BuildRequires:  bison
+BuildRequires:  cmake(Qt6)
+BuildRequires:  cmake(Qt6Core)
+BuildRequires:  cmake(Qt6Gui)
+BuildRequires:  cmake(Qt6OpenGLWidgets)
+BuildRequires:  cmake(Qt6Widgets)
 %if 0%{?suse_version} > 1500
 #!BuildIgnore:  clang-tools
 BuildRequires:  clang15-devel