diff --git a/code/3rd_QGLViewer/CMakeLists.txt b/code/3rd_QGLViewer/CMakeLists.txt
index 81ddf2cf..68d07341 100644
--- a/code/3rd_QGLViewer/CMakeLists.txt
+++ b/code/3rd_QGLViewer/CMakeLists.txt
@@ -22,7 +22,7 @@ if (Qt6_FOUND)
     message(STATUS "Building with Qt6")
     set(QtLibs Qt::Core Qt::Widgets Qt::Xml Qt::OpenGL Qt::OpenGLWidgets)
 else()
-    find_package(Qt5 5.15 REQUIRED COMPONENTS Core Widgets Xml OpenGL)
+    find_package(Qt5 REQUIRED COMPONENTS Core Widgets Xml OpenGL)
     message("Building with Qt5")
     set(QtLibs Qt::Core Qt::Widgets Qt::Xml Qt::OpenGL)
 endif()
diff --git a/code/PolyFit/CMakeLists.txt b/code/PolyFit/CMakeLists.txt
index 5b9dc360..31f757c9 100644
--- a/code/PolyFit/CMakeLists.txt
+++ b/code/PolyFit/CMakeLists.txt
@@ -20,7 +20,7 @@ if (Qt6_FOUND)
     message(STATUS "Building with Qt6")
     set(QtLibs Qt::Core Qt::Widgets Qt::Xml Qt::OpenGL Qt::OpenGLWidgets)
 else()
-    find_package(Qt5 5.15 REQUIRED COMPONENTS Core Widgets Xml OpenGL)
+    find_package(Qt5 REQUIRED COMPONENTS Core Widgets Xml OpenGL)
     message("Building with Qt5")
     set(QtLibs Qt::Core Qt::Widgets Qt::Xml Qt::OpenGL)
 endif()