diff --git a/scripts/ci/install_postgres.sh b/scripts/ci/install_postgres.sh
index b80f25b..391971d 100644
--- a/scripts/ci/install_postgres.sh
+++ b/scripts/ci/install_postgres.sh
@@ -27,7 +27,7 @@ done
 apt-get -y autoremove
 
 # Install PostgreSQL
-apt-get -y install postgresql-${PGSQL_VERSION} postgresql-${PGSQL_VERSION}-postgis-${POSTGIS_VERSION} postgresql-server-dev-${PGSQL_VERSION}
+apt-get -y install postgresql-${PGSQL_VERSION} postgresql-${PGSQL_VERSION}-postgis-${POSTGIS_VERSION} postgresql-server-dev-${PGSQL_VERSION} postgresql-plpython-${PGSQL_VERSION}
 
 # Configure it to accept local connections from postgres
 echo -e "# TYPE  DATABASE        USER            ADDRESS                 METHOD \nlocal   all             postgres                                trust\nlocal   all             all                                     trust\nhost    all             all             127.0.0.1/32            trust" > /etc/postgresql/${PGSQL_VERSION}/main/pg_hba.conf