diff --git a/docker/psql/Dockerfile b/docker/psql/Dockerfile
index a747e9c..49f76c7 100644
--- a/docker/psql/Dockerfile
+++ b/docker/psql/Dockerfile
@@ -7,4 +7,8 @@ RUN apt-get -y install python3 \
 
 RUN python3 -m pip install sentence-transformers
 
-ADD init.sql /docker-entrypoint-initdb.d
+ADD ./init.sql /docker-entrypoint-initdb.d/init.sql
+RUN chown postgres:postgres /docker-entrypoint-initdb.d/init.sql
+ENTRYPOINT ["docker-entrypoint.sh"]
+EXPOSE 5432
+CMD ["postgres"]
\ No newline at end of file
diff --git a/docker/psql/init.sql b/docker/psql/init.sql
index 0559369..4fcc850 100644
--- a/docker/psql/init.sql
+++ b/docker/psql/init.sql
@@ -1,7 +1,6 @@
 CREATE EXTENSION plpython3u;
 
-DROP FUNCTION text_pairs;
-CREATE OR REPLACE FUNCTION text_pairs(list TEXT[])
+CREATE FUNCTION text_pairs(list TEXT[])
 RETURNS SETOF TEXT[]
 LANGUAGE plpgsql AS
 $$
@@ -21,8 +20,7 @@ END;
 $$;
 
 
-DROP FUNCTION int_pairs;
-CREATE OR REPLACE FUNCTION int_pairs(list INTEGER[])
+CREATE FUNCTION int_pairs(list INTEGER[])
 RETURNS SETOF INTEGER[]
 LANGUAGE plpgsql AS
 $$