diff --git a/base/codeinsights-db/codeinsights-db.Deployment.yaml b/base/codeinsights-db/codeinsights-db.Deployment.yaml
index 7dc9321964d1..d3ceabbbc471 100644
--- a/base/codeinsights-db/codeinsights-db.Deployment.yaml
+++ b/base/codeinsights-db/codeinsights-db.Deployment.yaml
@@ -27,6 +27,9 @@ spec:
       containers:
       - name: timescaledb
         image: index.docker.io/sourcegraph/codeinsights-db:insiders@sha256:f985af2fef860cc48be40ded864df025b8794b02b86e66cbc6c55bfe3c418831
+        env:
+        - name: POSTGRES_PASSWORD # Accessible by Sourcegraph applications on the network only, so password auth is not used.
+          value: password
         terminationMessagePolicy: FallbackToLogsOnError
         readinessProbe:
           exec: