diff --git a/ports/qtbase/portfile.cmake b/ports/qtbase/portfile.cmake
index 820f588f3e9b69..f03ed99a492da0 100644
--- a/ports/qtbase/portfile.cmake
+++ b/ports/qtbase/portfile.cmake
@@ -422,7 +422,7 @@ endforeach()
 set(qttoolchain "${CURRENT_PACKAGES_DIR}/share/Qt6/qt.toolchain.cmake")
 file(READ "${qttoolchain}" toolchain_contents)
 string(REGEX REPLACE "set\\\(__qt_initially_configured_toolchain_file [^\\\n]+\\\n" "" toolchain_contents "${toolchain_contents}")
-string(REGEX REPLACE "set\\\(__qt_chainload_toolchain_file [^\\\n]+\\\n" "set(__qt_chainload_toolchain_file \"\${VCPKG_CHAINLOAD_TOOLCHAIN_FILE}\")" toolchain_contents "${toolchain_contents}")
+string(REGEX REPLACE "set\\\(__qt_chainload_toolchain_file [^\\\n]+\\\n" "set(__qt_chainload_toolchain_file \"\${VCPKG_CHAINLOAD_TOOLCHAIN_FILE}\n\")" toolchain_contents "${toolchain_contents}")
 string(REGEX REPLACE "set\\\(VCPKG_CHAINLOAD_TOOLCHAIN_FILE [^\\\n]+\\\n" "" toolchain_contents "${toolchain_contents}")
 string(REGEX REPLACE "set\\\(__qt_initial_c_compiler [^\\\n]+\\\n" "" toolchain_contents "${toolchain_contents}")
 string(REGEX REPLACE "set\\\(__qt_initial_cxx_compiler [^\\\n]+\\\n" "" toolchain_contents "${toolchain_contents}")
diff --git a/ports/qtbase/vcpkg.json b/ports/qtbase/vcpkg.json
index f06ebddcd505f6..15a08dbebdcdad 100644
--- a/ports/qtbase/vcpkg.json
+++ b/ports/qtbase/vcpkg.json
@@ -1,7 +1,7 @@
 {
   "name": "qtbase",
   "version": "6.8.3",
-  "port-version": 3,
+  "port-version": 4,
   "description": "Qt Base (Core, Gui, Widgets, Network, ...)",
   "homepage": "https://www.qt.io/",
   "license": null,
diff --git a/versions/baseline.json b/versions/baseline.json
index 7adb62fa1bbf8a..ef41cfaf5a15fb 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -7894,7 +7894,7 @@
     },
     "qtbase": {
       "baseline": "6.8.3",
-      "port-version": 3
+      "port-version": 4
     },
     "qtcharts": {
       "baseline": "6.8.3",
diff --git a/versions/q-/qtbase.json b/versions/q-/qtbase.json
index 9d6188f96e658a..4a1aceb1ab0be7 100644
--- a/versions/q-/qtbase.json
+++ b/versions/q-/qtbase.json
@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "4826cea955a38c53fd0ec9fbda9371270a1a7c65",
+      "version": "6.8.3",
+      "port-version": 4
+    },
     {
       "git-tree": "0310ceff18ae3cc39de1f5f492a2b7ba88bae639",
       "version": "6.8.3",