diff --git a/charts/argocd-notifications/templates/secret.yaml b/charts/argocd-notifications/templates/secret.yaml
index a79472e2..74c76992 100644
--- a/charts/argocd-notifications/templates/secret.yaml
+++ b/charts/argocd-notifications/templates/secret.yaml
@@ -29,11 +29,11 @@ stringData:
 {{- end }}
 {{- if .Values.secret.notifiers.email.enabled }}
     email:
-      host: {{ .Values.secret.notifiers.email.host }}
+      host: {{ .Values.secret.notifiers.email.host | quote }}
       port: {{ .Values.secret.notifiers.email.port }}
       insecure_skip_verify: {{ .Values.secret.notifiers.email.insecure_skip_verify }}
-      username: {{ .Values.secret.notifiers.email.username }}
-      password: {{ .Values.secret.notifiers.email.password }}
-      from: {{ .Values.secret.notifiers.email.from }}
+      username: {{ .Values.secret.notifiers.email.username | quote }}
+      password: {{ .Values.secret.notifiers.email.password | quote }}
+      from: {{ .Values.secret.notifiers.email.from | quote }}
 {{- end }}
 {{ end }}