diff --git a/charts/matrix-synapse/templates/deployment.yaml b/charts/matrix-synapse/templates/deployment.yaml
index cb0e7b4..14f2f2a 100644
--- a/charts/matrix-synapse/templates/deployment.yaml
+++ b/charts/matrix-synapse/templates/deployment.yaml
@@ -82,7 +82,7 @@ spec:
                           -c /synapse/config/conf.d/
           env:
 {{- $postgresPass := include "matrix-synapse.postgresql.password" . }}
-          {{- if and .Values.postgresql.enabled (not $postgresPass) }}
+          {{- if and .Values.postgresql.enabled }}
             - name: POSTGRES_PASSWORD
               valueFrom:
                 secretKeyRef:
@@ -90,7 +90,7 @@ spec:
                   key: postgresql-password
           {{- end }}
 {{- $redisPass := include "matrix-synapse.redis.password" . }}
-          {{- if and .Values.redis.enabled (default .Values.redis.usePassword true) (not $redisPass) }}
+          {{- if and .Values.redis.enabled (default .Values.redis.usePassword true) }}
             - name: REDIS_PASSWORD
               valueFrom:
                 secretKeyRef:
diff --git a/charts/matrix-synapse/templates/secrets.yaml b/charts/matrix-synapse/templates/secrets.yaml
index 3cdb3ed..8fcd9fa 100644
--- a/charts/matrix-synapse/templates/secrets.yaml
+++ b/charts/matrix-synapse/templates/secrets.yaml
@@ -44,7 +44,7 @@ stringData:
       name: "psycopg2"
       args:
         user: {{ $postgresUser | quote }}
-        {{- if $postgresPass }}
+        {{- if and $postgresPass (not .Values.postgresql.existingSecret)  }}
         password: {{ $postgresPass | quote }}
         {{- else }}
         password: "@@POSTGRES_PASSWORD@@"
@@ -67,7 +67,7 @@ stringData:
       enabled: true
       host: {{ $redisHost | quote }}
 {{- if or .Values.redis.usePassword .Values.redis.password .Values.externalRedis.password }}
-  {{- if $redisPass }}
+  {{- if and $redisPass (not .Values.redis.existingSecret)  }}
       password: {{ $redisPass | quote }}
   {{- else }}
       password: "@@REDIS_PASSWORD@@"