diff --git a/analysis_options.yaml b/analysis_options.yaml
index e4bff4920..871aaf20e 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -32,7 +32,6 @@ analyzer:
   # https://dart.dev/guides/language/analysis-options#enabling-additional-type-checks
   # https://dash-overflow.net/articles/getting_started/#step-3-disabling-_implicit-dynamic_--_implicit-cast_
   #
-  strong-mode:
 
   #
   # exclude protobuf files
diff --git a/example/analysis_options.yaml b/example/analysis_options.yaml
index b6b201dd1..c743242fa 100644
--- a/example/analysis_options.yaml
+++ b/example/analysis_options.yaml
@@ -32,7 +32,6 @@ analyzer:
   # https://dart.dev/guides/language/analysis-options#enabling-additional-type-checks
   # https://dash-overflow.net/articles/getting_started/#step-3-disabling-_implicit-dynamic_--_implicit-cast_
   #
-  strong-mode:
 
   #
   # exclude protobuf files