diff --git a/deploy_matrix.yml b/deploy_matrix.yml
index 4f1c610..1050cc0 100644
--- a/deploy_matrix.yml
+++ b/deploy_matrix.yml
@@ -184,12 +184,6 @@
         name: synapse
         image: "{{ synapse_image }}"
         state: started
-        env:
-          SYNAPSE_POSTGRES_USER: "{{ postgres_user }}"
-          SYNAPSE_POSTGRES_PASSWORD: "{{ postgres_pw }}"
-          SYNAPSE_POSTGRES_DBNAME: "{{ postgres_db }}"
-          SYNAPSE_POSTGRES_HOST: synapse-db
-          SYNAPSE_POSTGRES_PORT: 5432
         ports:
           - "{{ synapse_http_port }}:{{ synapse_http_port }}"
         volumes: