diff --git a/CMakeLists.txt b/CMakeLists.txt
index 356fc2fb9..bf58df705 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -264,7 +264,7 @@ if(ENABLE_QT)
     else()
         set(QT4_REQUIRED_MODULES QtCore QtGui QtNetwork)
         set(QT4_OPTIONAL_MODULES QtDBus QAxContainer QAxServer)
-        find_package(Qt4 4.6.2 QUIET COMPONENTS ${QT4_REQUIRED_MODULES} OPTIONAL_COMPONENTS ${QT4_OPTIONAL_MODULES})
+        find_package(Qt4 4.8.0 QUIET COMPONENTS ${QT4_REQUIRED_MODULES} OPTIONAL_COMPONENTS ${QT4_OPTIONAL_MODULES})
         foreach(M ${QT4_REQUIRED_MODULES})
             string(TOUPPER "${M}" M_UPPER)
             if(QT_${M_UPPER}_FOUND)
diff --git a/qt/README.txt b/qt/README.txt
index 4b6800d9a..4713e12ee 100644
--- a/qt/README.txt
+++ b/qt/README.txt
@@ -36,7 +36,7 @@ BUILDING ON OS X
 
 BUILDING ON UNIX
 
-   1. Prerequisites: Qt >= 4.6 and its development packages
+   1. Prerequisites: Qt >= 4.8 and its development packages
    2. Build Transmission as normal
    3. In the qt/ directory, type "qmake qtr.pro" (or "qmake-qt4 qtr.pro", or "qmake-qt5 qtr.pro")
    4. In the qt/ directory, type "make"