diff --git a/appveyor.yml b/appveyor.yml
index e3d02597..19917be5 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -3,7 +3,7 @@ version: '{build}'
 # Build on both Windows and Linux
 image:
   - Visual Studio 2022
-  - Ubuntu2004
+  - Ubuntu2404
 
 # Używamy własnych kroków build
 build: off
@@ -58,7 +58,7 @@ for:
 # ------------------------------------------------------------------ Linux
 - matrix:
     only:
-      - image: Ubuntu2004
+      - image: Ubuntu2404
 
   init:
     - sh: |
@@ -69,13 +69,15 @@ for:
     - sh: |
         git submodule update --init --recursive
         sudo apt-get update -y
-        sudo apt-get install -y libglfw3-dev python3-dev libpng-dev libopenal-dev libluajit-5.1-dev libserialport-dev libsndfile1-dev
+        sudo apt-get install -y libglfw3-dev libpng-dev libopenal-dev libluajit-5.1-dev libserialport-dev libsndfile1-dev
 
   build_script:
     - sh: |
+        # Python 3.14 is preinstalled on the image (pyenv); point CMake at it
+        PYTHON=$(pyenv which python3.14 2>/dev/null || command -v python3.14)
         mkdir -p build
         cd build
-        cmake .. -DCMAKE_BUILD_TYPE=Release -DWITH_ZMQ=OFF -DWITH_OPENVR=OFF -DUSE_LTO=ON
+        cmake .. -DCMAKE_BUILD_TYPE=Release -DWITH_ZMQ=OFF -DWITH_OPENVR=OFF -DWITH_BETTER_RENDERER=OFF -DUSE_LTO=ON -DPython3_EXECUTABLE="$PYTHON"
         cmake --build . --parallel
         cd ..