diff --git a/changelog.d/4820.misc b/changelog.d/4820.misc
new file mode 100644
index 000000000..1e35b5b63
--- /dev/null
+++ b/changelog.d/4820.misc
@@ -0,0 +1 @@
+Update example_log_config.yaml.
diff --git a/contrib/example_log_config.yaml b/contrib/example_log_config.yaml
index c7aa68abf..06592963d 100644
--- a/contrib/example_log_config.yaml
+++ b/contrib/example_log_config.yaml
@@ -19,6 +19,7 @@ handlers:
   # example output to console
   console:
     class: logging.StreamHandler
+    formatter: fmt
     filters: [context]
 
   # example output to file - to enable, edit 'root' config below.
@@ -29,7 +30,7 @@ handlers:
     maxBytes: 100000000
     backupCount: 3
     filters: [context]
-
+    encoding: utf8
 
 root:
     level: INFO