diff --git a/.github/workflows/build-qi-qmp-linux.yml b/.github/workflows/build-qi-qmp-linux.yml
index 6be4d8a..7d6a090 100644
--- a/.github/workflows/build-qi-qmp-linux.yml
+++ b/.github/workflows/build-qi-qmp-linux.yml
@@ -60,7 +60,7 @@ jobs:
     - name: Install Qt (custom build)
       uses: oblivioncth/actions/general/install-and-cache-qt-from-ffynnon@dev
       with:
-        version: 6.4.2
+        version: 6.5.1
         os: linux
         compiler: ${{ matrix.qt_comp }}
         linkage: ${{ matrix.lib_linkage }}
@@ -73,7 +73,7 @@ jobs:
     - name: Install Doxygen
       uses: oblivioncth/actions/ubuntu/install-doxygen-from-sourceforge@dev
       with:
-        version: 1.9.4
+        version: 1.9.7
     - name: Install Graphviz
       run: sudo apt-get install graphviz
     - name: Install Ninja
diff --git a/.github/workflows/build-qi-qmp-windows.yml b/.github/workflows/build-qi-qmp-windows.yml
index ed34ebf..ab556b3 100644
--- a/.github/workflows/build-qi-qmp-windows.yml
+++ b/.github/workflows/build-qi-qmp-windows.yml
@@ -43,7 +43,7 @@ jobs:
     - name: Install Qt (custom build)
       uses: oblivioncth/actions/general/install-and-cache-qt-from-ffynnon@dev
       with:
-        version: 6.4.2
+        version: 6.5.1
         os: windows
         compiler: msvc2022
         linkage: ${{ matrix.lib_linkage }}
@@ -52,7 +52,7 @@ jobs:
     - name: Install Doxygen
       uses: oblivioncth/actions/general/cache-and-install-doxygen-from-ffynnon@dev
       with:
-        version: 1.9.4
+        version: 1.9.7
         os: windows
         credentials: ${{ secrets.qt_ffynnon_cred }}
     - name: Install Graphviz