diff --git a/default.yaml b/default.yaml
index d2085379..ea1e5029 100644
--- a/default.yaml
+++ b/default.yaml
@@ -1117,9 +1117,9 @@ history:
         # users to query history after disconnections.
         grace-period: 1h
 
-    # options to store history messages in a persistent database (currently only MySQL).
-    # in order to enable any of this functionality, you must configure a MySQL server
-    # in the `datastore.mysql` section. enabling persistence overrides the history
+    # options to store history messages in a persistent database (MySQL, PostgreSQL
+    # or SQLite). in order to enable any of this functionality, you must configure
+    # one of those databases above. enabling persistence overrides the history
     # size limits above (`channel-length`, `client-length`, etc.); persistent
     # history has no limits other than those imposed by expire-time.
     persistent:
diff --git a/traditional.yaml b/traditional.yaml
index ef1e6b72..8b9c396d 100644
--- a/traditional.yaml
+++ b/traditional.yaml
@@ -1088,9 +1088,9 @@ history:
         # users to query history after disconnections.
         grace-period: 1h
 
-    # options to store history messages in a persistent database (currently only MySQL).
-    # in order to enable any of this functionality, you must configure a MySQL server
-    # in the `datastore.mysql` section. enabling persistence overrides the history
+    # options to store history messages in a persistent database (MySQL, PostgreSQL
+    # or SQLite). in order to enable any of this functionality, you must configure
+    # one of those databases above. enabling persistence overrides the history
     # size limits above (`channel-length`, `client-length`, etc.); persistent
     # history has no limits other than those imposed by expire-time.
     persistent: