diff --git a/qt6-base/qt6-base.spec b/qt6-base/qt6-base.spec
index 6eb1415..b64b6b6 100644
--- a/qt6-base/qt6-base.spec
+++ b/qt6-base/qt6-base.spec
@@ -204,6 +204,8 @@ Static library files for Qt6.
 %package        gui
 Summary:        Qt6 GUI-related libraries
 Requires:       %{name}%{?_isa} = %{version}-%{release}
+Requires:       libxcb-util1
+Conflicts:      xcb-util
 # Requires:       glx-utils
 
 %description    gui
diff --git a/xcb-util-image/xcb-util-image.spec b/xcb-util-image/xcb-util-image.spec
index bb61a58..35a64f3 100644
--- a/xcb-util-image/xcb-util-image.spec
+++ b/xcb-util-image/xcb-util-image.spec
@@ -22,6 +22,7 @@ BuildRequires:  pkgconfig(xcb-shm)
 BuildRequires:  pkgconfig(xcb-util)
 BuildRequires:  pkgconfig(xorg-macros) >= 1.6.0
 BuildRequires:  pkgconfig(xproto) >= 7.0.8
+BuildRequires:  libxcb-util1
 
 %description
 The XCB util modules provide a number of libraries which sit on top
@@ -35,6 +36,8 @@ Included in this package is:
 %package -n %lname
 Summary:        XCB utility module for XImage/XShmImage-like functions
 Group:          System/Libraries
+Requires:       libxcb-util1
+Conflicts:      xcb-util
 
 %description -n %lname
 The XCB util modules provide a number of libraries which sit on top