diff --git a/docker/tester/Dockerfile b/docker/tester/Dockerfile
index 764a2ce4..7d64c85f 100644
--- a/docker/tester/Dockerfile
+++ b/docker/tester/Dockerfile
@@ -1,4 +1,4 @@
-FROM fedora:28
+FROM fedora:31
 
 LABEL name="falcosecurity/falco-tester"
 LABEL usage="docker run -v /boot:/boot:ro -v /var/run/docker.sock:/var/run/docker.sock -v $PWD/..:/source -v $PWD/build:/build -e FALCO_VERSION=<current_falco_version> --name <name> falcosecurity/falco-tester test"
@@ -7,8 +7,10 @@ LABEL maintainer="opensource@sysdig.com"
 ENV FALCO_VERSION=
 ENV BUILD_TYPE=release
 
-RUN curl https://avocado-project.org/data/repos/avocado-fedora.repo -o /etc/yum.repos.d/avocado.repo && \
-    dnf install -y docker findutils jq unzip python2-avocado python2-avocado-plugins-varianter-yaml-to-mux && dnf clean all
+RUN dnf install -y python2-pip python2 docker findutils jq unzip && dnf clean all
+ENV PATH="/root/.local/bin/:${PATH}"
+RUN pip2 install --user avocado-framework==69.0
+RUN pip2 install --user avocado-framework-plugin-varianter-yaml-to-mux==69.0
 
 COPY ./root /
 
diff --git a/docker/tester/root/usr/bin/entrypoint b/docker/tester/root/usr/bin/entrypoint
index eb8fac3e..ad3cfb24 100755
--- a/docker/tester/root/usr/bin/entrypoint
+++ b/docker/tester/root/usr/bin/entrypoint
@@ -49,7 +49,7 @@ case "$CMD" in
     fi
     echo "Running regression tests ..."
     cd $SOURCE_DIR/falco/test
-    bash run_regression_tests.sh $BUILD_DIR/$BUILD_TYPE
+    ./run_regression_tests.sh $BUILD_DIR/$BUILD_TYPE
     docker rmi "$DOCKER_IMAGE_NAME" || true
     ;;
 "bash")
diff --git a/docker/tester/root/usr/bin/usage b/docker/tester/root/usr/bin/usage
index 96527ad0..c3d0c448 100755
--- a/docker/tester/root/usr/bin/usage
+++ b/docker/tester/root/usr/bin/usage
@@ -1,9 +1,9 @@
 #!/usr/bin/env bash
 
-pythonversion=$(python -c 'import sys; version=sys.version_info[:3]; print("{0}.{1}.{2}".format(*version))')
-pipversion=$(pip --version | cut -d' ' -f 1,2,5,6)
+pythonversion=$(python2 -c 'import sys; version=sys.version_info[:3]; print("{0}.{1}.{2}".format(*version))')
+pipversion=$(pip2 --version | cut -d' ' -f 1,2,5,6)
 dockerversion=$(docker --version)
-avocadoversion=$(pip show avocado-framework | grep Version)
+avocadoversion=$(pip2 show avocado-framework | grep Version)
 avocadoversion=${avocadoversion#"Version: "}
 
 cat <<EOF
@@ -38,4 +38,4 @@ Environment.
     * ${pipversion}
     * avocado ${avocadoversion}
     * ${dockerversion}
-EOF
\ No newline at end of file
+EOF