diff --git a/gnu/packages/kde-frameworks.scm b/gnu/packages/kde-frameworks.scm
index e914499541..e57e9e1d0a 100644
--- a/gnu/packages/kde-frameworks.scm
+++ b/gnu/packages/kde-frameworks.scm
@@ -85,48 +85,64 @@ (define-module (gnu packages kde-frameworks)
   #:use-module (srfi srfi-1))
 
 (define-public extra-cmake-modules
-  (package
-    (name "extra-cmake-modules")
-    (version "5.70.0")
-    (source (origin
-              (method url-fetch)
-              (uri (string-append
-                    "mirror://kde/stable/frameworks/"
-                    (version-major+minor version) "/"
-                    name "-" version ".tar.xz"))
-              (sha256
-               (base32
-                "10c5xs5shk0dcshpdxg564ay5y8hgmvfvmlhmhjf0dy79kcah3c3"))))
-    (build-system cmake-build-system)
-    (native-inputs
-     ;; Add test dependency, except on armhf where building it is too
-     ;; expensive.
-     (if (and (not (%current-target-system))
-              (string=? (%current-system) "armhf-linux"))
-         '()
-         `(("qtbase" ,qtbase-5))))                ;for tests (needs qmake)
-    (arguments
-     `(#:tests? ,(and (not (%current-target-system))
-                      (not (null? (package-native-inputs this-package))))
-       #:phases
-       (modify-phases %standard-phases
+ (package
+   (name "extra-cmake-modules")
+   (version "5.91.0")
+   (source (origin
+             (method url-fetch)
+             (uri (string-append
+                   "mirror://kde/stable/frameworks/"
+                   (version-major+minor version) "/"
+                   name "-" version ".tar.xz"))
+             (sha256
+              (base32
+               "0k65rvxh926ya6qahzk2ns7g1fya1429648mlx7iipxa61g8h5wp"))))
+   (build-system cmake-build-system)
+   (native-inputs
+    ;; Add test dependency, except on armhf where building it is too
+    ;; expensive.
+    (if (and (not (%current-target-system))
+             (string=? (%current-system) "armhf-linux"))
+        '()
+        (list qtbase-5)))               ;for tests (needs qmake)
+   (arguments
+    (list
+     #:tests? (and (not (%current-target-system))
+                   (not (null? (package-native-inputs this-package))))
+     #:phases
+     #~(modify-phases %standard-phases
          (add-after 'unpack 'fix-lib-path
            (lambda _
              ;; Always install into /lib and not into /lib64.
-             (substitute* "kde-modules/KDEInstallDirs.cmake"
-               (("\"lib64\"") "\"lib\"")
-               ;; TODO: Base the following on values taken from Qt
-               ;; Install plugins into lib/qt5/plugins
-               ;; TODO: Check if this is okay for Android, too
-               ;; (see comment in KDEInstallDirs.cmake)
-               (("_define_relative\\(QTPLUGINDIR \"\\$\\{_pluginsDirParent}\" \"plugins\"")
-                "_define_relative(QTPLUGINDIR \"${_pluginsDirParent}\" \"qt5/plugins\"")
-               ;; Install imports into lib/qt5/imports
-               (("_define_relative\\(QTQUICKIMPORTSDIR QTPLUGINDIR \"imports\"")
-                "_define_relative(QTQUICKIMPORTSDIR LIBDIR \"qt5/imports\"")
-               ;; Install qml-files into lib/qt5/qml
-               (("_define_relative\\(QMLDIR LIBDIR \"qml\"")
-                "_define_relative(QMLDIR LIBDIR \"qt5/qml\""))
+             (substitute* "kde-modules/KDEInstallDirsCommon.cmake"
+               (("\"lib64\"") "\"lib\""))
+
+             ;; TODO: Base the following on values taken from Qt
+             ;; Install plugins into lib/qt5/plugins
+             ;; TODO: Check if this is okay for Android, too
+             ;; (see comment in KDEInstallDirs.cmake)
+             (for-each
+              (lambda (qt-ver)
+                (define file (string-append "kde-modules/KDEInstallDirs"
+                                            qt-ver ".cmake"))
+                (substitute* file
+                  ;; Fix the installation path of Qt plugins.
+                  (("_define_relative\\(QTPLUGINDIR \"\\$\\{_pluginsDirParent}\" \"plugins\"")
+                   (string-append
+                    "_define_relative(QTPLUGINDIR \"${_pluginsDirParent}\" \"qt"
+                    qt-ver "/plugins\""))
+                  ;; Fix the installation path of QML files.
+                  (("_define_relative\\(QMLDIR LIBDIR \"qml\"")
+                   (string-append "_define_relative(QMLDIR LIBDIR \"qt"
+                                  qt-ver "/qml\"")))
+
+                ;; Qt Quick 1 series is removed in Qt6.
+                (when (string=? qt-ver "5")
+                  (substitute* file
+                    (("_define_relative\\(QTQUICKIMPORTSDIR QTPLUGINDIR \"imports\"")
+                     "_define_relative(QTQUICKIMPORTSDIR LIBDIR \"qt5/imports\""))))
+              '("5" "6"))
+
              (substitute* "modules/ECMGeneratePriFile.cmake"
                ;; Install pri-files into lib/qt5/mkspecs
                (("set\\(ECM_MKSPECS_INSTALL_DIR mkspecs/modules")
@@ -137,20 +153,20 @@ (define-public extra-cmake-modules
          (add-after 'install 'check-post-install
            (assoc-ref %standard-phases 'check))
          (delete 'check))))
-    ;; optional dependencies - to save space, we do not add these inputs.
-    ;; Sphinx > 1.2:
-    ;;   Required to build Extra CMake Modules documentation in Qt Help format.
-    ;; Qt5LinguistTools , Qt5 linguist tools. , <http://www.qt.io/>
-    ;;   Required to run tests for the ECMPoQmTools module.
-    ;; Qt5Core
-    ;;   Required to run tests for the ECMQtDeclareLoggingCategory module,
-    ;;   and for some tests of the KDEInstallDirs module.
-    (home-page "https://community.kde.org/Frameworks")
-    (synopsis "CMake module files for common software used by KDE")
-    (description "The Extra CMake Modules package, or ECM, adds to the
+   ;; optional dependencies - to save space, we do not add these inputs.
+   ;; Sphinx > 1.2:
+   ;;   Required to build Extra CMake Modules documentation in Qt Help format.
+   ;; Qt5LinguistTools , Qt5 linguist tools. , <http://www.qt.io/>
+   ;;   Required to run tests for the ECMPoQmTools module.
+   ;; Qt5Core
+   ;;   Required to run tests for the ECMQtDeclareLoggingCategory module,
+   ;;   and for some tests of the KDEInstallDirs module.
+   (home-page "https://community.kde.org/Frameworks")
+   (synopsis "CMake module files for common software used by KDE")
+   (description "The Extra CMake Modules package, or ECM, adds to the
 modules provided by CMake to find common software.  In addition, it provides
 common build settings used in software produced by the KDE community.")
-    (license license:bsd-3)))
+   (license license:bsd-3)))
 
 (define-public phonon
   (package