diff --git a/.ci/build-mac-arm64.sh b/.ci/build-mac-arm64.sh
index 1c5a03ef22..74a2d39bb1 100644
--- a/.ci/build-mac-arm64.sh
+++ b/.ci/build-mac-arm64.sh
@@ -72,13 +72,13 @@ if [ ! -d "/tmp/Qt/$QT_VER" ]; then
   git clone https://github.com/engnr/qt-downloader.git
   cd qt-downloader
   git checkout f52efee0f18668c6d6de2dec0234b8c4bc54c597
-  # nested Qt 6.8.2 URL workaround
+  # nested Qt 6.8.3 URL workaround
   # sed -i '' "s/'qt{0}_{0}{1}{2}'.format(major, minor, patch)]))/'qt{0}_{0}{1}{2}'.format(major, minor, patch), 'qt{0}_{0}{1}{2}'.format(major, minor, patch)]))/g" qt-downloader
   # sed -i '' "s/'{}\/{}\/qt{}_{}\/'/'{0}\/{1}\/qt{2}_{3}\/qt{2}_{3}\/'/g" qt-downloader
   cd "/tmp/Qt"
   "$BREW_X64_PATH/bin/pipenv" run pip3 install py7zr requests semantic_version lxml
   mkdir -p "$QT_VER/macos" ; ln -s "macos" "$QT_VER/clang_64"
-  # sed -i '' 's/args\.version \/ derive_toolchain_dir(args) \/ //g' "$WORKDIR/qt-downloader/qt-downloader" # Qt 6.8.2 workaround
+  # sed -i '' 's/args\.version \/ derive_toolchain_dir(args) \/ //g' "$WORKDIR/qt-downloader/qt-downloader" # Qt 6.8.3 workaround
   "$BREW_X64_PATH/bin/pipenv" run "$WORKDIR/qt-downloader/qt-downloader" macos desktop "$QT_VER" clang_64 --opensource --addons qtmultimedia qtimageformats # -o "$QT_VER/clang_64"
 fi
 
diff --git a/.ci/build-mac.sh b/.ci/build-mac.sh
index 2ae92fb9fd..b02417cbcb 100644
--- a/.ci/build-mac.sh
+++ b/.ci/build-mac.sh
@@ -39,13 +39,13 @@ if [ ! -d "/tmp/Qt/$QT_VER" ]; then
   git clone https://github.com/engnr/qt-downloader.git
   cd qt-downloader
   git checkout f52efee0f18668c6d6de2dec0234b8c4bc54c597
-  # nested Qt 6.8.2 URL workaround
+  # nested Qt 6.8.3 URL workaround
   # sed -i '' "s/'qt{0}_{0}{1}{2}'.format(major, minor, patch)]))/'qt{0}_{0}{1}{2}'.format(major, minor, patch), 'qt{0}_{0}{1}{2}'.format(major, minor, patch)]))/g" qt-downloader
   # sed -i '' "s/'{}\/{}\/qt{}_{}\/'/'{0}\/{1}\/qt{2}_{3}\/qt{2}_{3}\/'/g" qt-downloader
   cd "/tmp/Qt"
   "$BREW_X64_PATH/bin/pipenv" run pip3 install py7zr requests semantic_version lxml
   mkdir -p "$QT_VER/macos" ; ln -s "macos" "$QT_VER/clang_64"
-  # sed -i '' 's/args\.version \/ derive_toolchain_dir(args) \/ //g' "$WORKDIR/qt-downloader/qt-downloader" # Qt 6.8.2 workaround
+  # sed -i '' 's/args\.version \/ derive_toolchain_dir(args) \/ //g' "$WORKDIR/qt-downloader/qt-downloader" # Qt 6.8.3 workaround
   "$BREW_X64_PATH/bin/pipenv" run "$WORKDIR/qt-downloader/qt-downloader" macos desktop "$QT_VER" clang_64 --opensource --addons qtmultimedia qtimageformats # -o "$QT_VER/clang_64"
 fi
 
diff --git a/.cirrus.yml b/.cirrus.yml
index 1ad1dc4190..3b71413102 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -7,7 +7,7 @@ env:
   BUILD_SOURCEBRANCHNAME: $CIRRUS_BRANCH
   RPCS3_TOKEN: ENCRYPTED[100ebb8e3552bf2021d0ef55dccda3e58d27be5b6cab0b0b92843ef490195d3c4edaefa087e4a3b425caa6392300b9b1]
   QT_VER_MAIN: '6'
-  QT_VER: '6.8.2'
+  QT_VER: '6.8.3'
   LLVM_COMPILER_VER: '19'
   LLVM_VER: '19.1.7'
 
@@ -23,7 +23,7 @@ env:
 #     COMPILER: msvc
 #     BUILD_ARTIFACTSTAGINGDIRECTORY: ${CIRRUS_WORKING_DIR}\artifacts\
 #     QT_VER_MSVC: 'msvc2022'
-#     QT_DATE: '202501260838'
+#     QT_DATE: '202503201308'
 #     QTDIR: C:\Qt\${QT_VER}\${QT_VER_MSVC}_64
 #     VULKAN_VER: '1.3.268.0'
 #     VULKAN_SDK_SHA: '8459ef49bd06b697115ddd3d97c9aec729e849cd775f5be70897718a9b3b9db5'
diff --git a/.github/workflows/rpcs3.yml b/.github/workflows/rpcs3.yml
index e74954e09f..37ed5f55d9 100644
--- a/.github/workflows/rpcs3.yml
+++ b/.github/workflows/rpcs3.yml
@@ -105,9 +105,9 @@ jobs:
     env:
       COMPILER: msvc
       QT_VER_MAIN: '6'
-      QT_VER: '6.8.2'
+      QT_VER: '6.8.3'
       QT_VER_MSVC: 'msvc2022'
-      QT_DATE: '202501260838'
+      QT_DATE: '202503201308'
       LLVM_VER: '19.1.7'
       VULKAN_VER: '1.3.268.0'
       VULKAN_SDK_SHA: '8459ef49bd06b697115ddd3d97c9aec729e849cd775f5be70897718a9b3b9db5'
diff --git a/BUILDING.md b/BUILDING.md
index 0095bf9131..83693b0f44 100644
--- a/BUILDING.md
+++ b/BUILDING.md
@@ -19,26 +19,26 @@ The following tools are required to build RPCS3 on Windows 10 or later:
     with standalone **CMake** tool.
 
 - [Python 3.6+](https://www.python.org/downloads/) (add to PATH)
-- [Qt 6.8.2](https://www.qt.io/download-qt-installer) In case you can't download from the official installer, you can use [Another Qt installer](https://github.com/miurahr/aqtinstall) (In that case you will need to manually add the "qtmultimedia" module when installing Qt)
+- [Qt 6.8.3](https://www.qt.io/download-qt-installer) In case you can't download from the official installer, you can use [Another Qt installer](https://github.com/miurahr/aqtinstall) (In that case you will need to manually add the "qtmultimedia" module when installing Qt)
 - [Vulkan SDK 1.3.268.0](https://vulkan.lunarg.com/sdk/home) (see "Install the SDK" [here](https://vulkan.lunarg.com/doc/sdk/latest/windows/getting_started.html)) for now future SDKs don't work. You need precisely 1.3.268.0.
 
 The `sln` solution available only on **Visual Studio** is the preferred building solution. It easily allows to build the **RPCS3** application in `Release` and `Debug` mode.
 
 In order to build **RPCS3** with the `sln` solution (with **Visual Studio**), **Qt** libs need to be detected. To detect the libs:
-- add and set the `QTDIR` environment variable, e.g. `<QtInstallFolder>\6.8.2\msvc2022_64\`
+- add and set the `QTDIR` environment variable, e.g. `<QtInstallFolder>\6.8.3\msvc2022_64\`
 - or use the [Visual Studio Qt Plugin](https://marketplace.visualstudio.com/items?itemName=TheQtCompany.QtVisualStudioTools2022)
 
   **NOTE:** If you have issues with the **Visual Studio Qt Plugin**, you may want to uninstall it and install the [Legacy Qt Plugin](https://marketplace.visualstudio.com/items?itemName=TheQtCompany.LEGACYQtVisualStudioTools2022) instead.
 
 In order to build **RPCS3** with the `CMake` solution (with both **Visual Studio** and standalone **CMake** tool):
-- add and set the `Qt6_ROOT` environment variable to the **Qt** libs path, e.g. `<QtInstallFolder>\6.8.2\msvc2022_64\`
+- add and set the `Qt6_ROOT` environment variable to the **Qt** libs path, e.g. `<QtInstallFolder>\6.8.3\msvc2022_64\`
 
 ### Linux
 
 These are the essentials tools to build RPCS3 on Linux. Some of them can be installed through your favorite package manager:
 - Clang 17+ or GCC 13+
 - [CMake 3.28.0+](https://www.cmake.org/download/)
-- [Qt 6.8.2](https://www.qt.io/download-qt-installer)
+- [Qt 6.8.3](https://www.qt.io/download-qt-installer)
 - [Vulkan SDK 1.3.268.0](https://vulkan.lunarg.com/sdk/home) (See "Install the SDK" [here](https://vulkan.lunarg.com/doc/sdk/latest/linux/getting_started.html)) for now future SDKs don't work. You need precisely 1.3.268.0.
 - [SDL3](https://github.com/libsdl-org/SDL/releases) (for the FAudio backend)
 
@@ -121,7 +121,7 @@ Start **Visual Studio**, click on `Open a project or solution` and select the `r
 ##### Configuring the Qt Plugin (if used)
 
 1) go to `Extensions->Qt VS Tools->Qt Versions`
-2) add the path to your Qt installation with compiler e.g. `<QtInstallFolder>\6.8.2\msvc2022_64`, version will fill in automatically
+2) add the path to your Qt installation with compiler e.g. `<QtInstallFolder>\6.8.3\msvc2022_64`, version will fill in automatically
 3) go to `Extensions->Qt VS Tools->Options->Legacy Project Format`. (Only available in the **Legacy Qt Plugin**)
 4) set `Build: Run pre-build setup` to `true`. (Only available in the **Legacy Qt Plugin**)
 
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
index ab91b1e8a3..fb19dcb7f1 100644
--- a/azure-pipelines.yml
+++ b/azure-pipelines.yml
@@ -71,9 +71,9 @@ jobs:
 #   variables:
 #     COMPILER: msvc
 #     QT_VER_MAIN: '6'
-#     QT_VER: '6.8.2'
+#     QT_VER: '6.8.3'
 #     QT_VER_MSVC: 'msvc2022'
-#     QT_DATE: '202501260838'
+#     QT_DATE: '202503201308'
 #     QTDIR: C:\Qt\$(QT_VER)\$(QT_VER_MSVC)_64
 #     LLVM_VER: '19.1.7'
 #     VULKAN_VER: '1.3.268.0'