diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index d31f91a5be4..c21553794c0 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -63,7 +63,7 @@ jobs:
           tar -xvf ccache-*-linux-x86_64.tar.xz
           cd ccache-*-linux-x86_64
           sudo make install
-          sudo add-apt-repository ppa:ubuntu-toolchain-r/ppa
+          sudo add-apt-repository ppa:ubuntu-toolchain-r/test
           sudo apt install gcc-13 g++-13
           sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-13 100 --slave /usr/bin/g++ g++ /usr/bin/g++-13 --slave /usr/bin/gcov gcov /usr/bin/gcov-13
           sudo update-alternatives --set gcc /usr/bin/gcc-13