diff --git a/regression-tests/build_image/Dockerfile_el9_gcc b/regression-tests/build_image/Dockerfile_el9_gcc
index 09e99578..bbfe6d92 100644
--- a/regression-tests/build_image/Dockerfile_el9_gcc
+++ b/regression-tests/build_image/Dockerfile_el9_gcc
@@ -17,6 +17,7 @@ RUN yum -y install gcc-toolset-12 python3 python3-devel lld python-unversioned-c
     git clone https://github.com/percona/percona-server-mongodb.git && \
     cd percona-server-mongodb/ && \
     git checkout $branch && git pull && \
+    source /opt/rh/gcc-toolset-12/enable && \
     pip3 install --user -r etc/pip/dev-requirements.txt && \
     rm -rf /opt/percona-server-mongodb/.git && mkdir -p /data/db
 RUN source /opt/rh/gcc-toolset-12/enable && \
@@ -43,12 +44,13 @@ ARG psm_ver=7.0.0
 ARG psm_release=0
 ARG branch=v7.0
 WORKDIR /opt
-RUN yum -y install python3 python3-devel python-unversioned-command git curl \
+RUN yum -y install gcc-toolset-12 python3 python3-devel python-unversioned-command git curl \
                    openssl-devel openldap-devel krb5-devel libcurl-devel \
                    cyrus-sasl-devel bzip2-devel zlib-devel lz4-devel xz-devel e2fsprogs-devel && \
     git clone https://github.com/percona/percona-server-mongodb.git && \
     cd percona-server-mongodb/ && \
     git checkout $branch && git pull && \
+    source /opt/rh/gcc-toolset-12/enable && \
     pip3 install --user -r etc/pip/dev-requirements.txt && \
     rm -rf /opt/percona-server-mongodb/.git && mkdir -p /data/db && mkdir -p /var/lib/mongo && \
     useradd -u 1001 -r -g 0 -m -s /sbin/nologin \