diff --git a/testing/docker-compose.yaml b/testing/docker-compose.yaml
index 0a3c3c5..18621bc 100644
--- a/testing/docker-compose.yaml
+++ b/testing/docker-compose.yaml
@@ -6,12 +6,14 @@ services:
       dockerfile: postgres.Dockerfile
     restart: "always"
     environment:
-      POSTGRESQL_PASSWORD: mypassword
-      POSTGRESQL_DATABASE: tycho_indexer_0
-      POSTGRESQL_USERNAME: postgres
+      POSTGRES_PASSWORD: mypassword
+      POSTGRES_DATABASE: tycho_indexer_0
+      POSTGRES_USERNAME: postgres
       POSTGRESQL_SHARED_PRELOAD_LIBRARIES: pg_cron
     ports:
       - "5431:5432"
     shm_size: "1gb"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
 volumes:
-  postgres_data:
+  postgres_data:
\ No newline at end of file
diff --git a/testing/postgres.Dockerfile b/testing/postgres.Dockerfile
index c9301d6..bda0179 100644
--- a/testing/postgres.Dockerfile
+++ b/testing/postgres.Dockerfile
@@ -1,12 +1,13 @@
 # This Dockerfile creates a custom postgres image used for CI and local deployment.
-# This is required because we use some postgres extensions that aren't in the generic 
+# This is required because we use some postgres extensions that aren't in the generic
 # Postgres image such as pg_partman or pg_cron.
 
-# As an image with pg_partman already exist, we start from this one and add pg_cron 
+# As an image with pg_partman already exist, we start from this one and add pg_cron
 # and possibly other extensions on top of that.
 FROM ghcr.io/dbsystel/postgresql-partman:15-5
 ARG PGCRON_VERSION="1.6.2"
 USER root
+RUN apk update && apk add --no-cache wget build-base clang19 llvm19
 RUN cd /tmp \
     && wget "https://github.com/citusdata/pg_cron/archive/refs/tags/v${PGCRON_VERSION}.tar.gz" \
     && tar zxf v${PGCRON_VERSION}.tar.gz \
@@ -14,5 +15,10 @@ RUN cd /tmp \
     && make \
     && make install \
     && cd .. && rm -r pg_cron-${PGCRON_VERSION} v${PGCRON_VERSION}.tar.gz
-RUN echo "cron.database_name = 'tycho_indexer_0'" >> /opt/bitnami/postgresql/conf/postgresql.conf
-USER 1001
\ No newline at end of file
+
+# Add configuration to postgresql.conf template
+RUN echo "shared_preload_libraries = 'pg_partman_bgw,pg_cron'" >> /usr/local/share/postgresql/postgresql.conf.sample \
+    && echo "cron.database_name = 'tycho_indexer_0'" >> /usr/local/share/postgresql/postgresql.conf.sample
+
+# Stay as root user for PostgreSQL to work properly
+# USER 1001
\ No newline at end of file