diff --git a/coin/provisioning/qtci-linux-CentOS-8.3-x86_64/03-install-gcc-toolset.sh b/coin/provisioning/qtci-linux-CentOS-8.3-x86_64/03-install-gcc-toolset.sh
index fbd1081d..54b9d774 100644
--- a/coin/provisioning/qtci-linux-CentOS-8.3-x86_64/03-install-gcc-toolset.sh
+++ b/coin/provisioning/qtci-linux-CentOS-8.3-x86_64/03-install-gcc-toolset.sh
@@ -37,5 +37,5 @@ set -ex
 
 sudo yum -y install gcc-toolset-9
 
-echo "source /opt/rh/gcc-toolset-10/enable" >> ~/.bashrc
+echo "source /opt/rh/gcc-toolset-9/enable" >> ~/.bashrc