diff --git a/.drone.yml b/.drone.yml
index 8d255a756..af67f54b4 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -184,7 +184,7 @@ steps:
     - echo "MAKE_FLAGS:= $COMMON_FLAGS"
     - apt-get update -y
     - apt-get install -y software-properties-common
-    - add-apt-repository ppa:ubuntu-toolchain-r/ppa
+    - add-apt-repository ppa:ubuntu-toolchain-r/test
     - apt-get update -y
     - apt-get install -y make $CC gfortran-10 perl python g++-10
     - $CC --version