diff --git a/tests/tool/proselint_tool_plugin/valid_package/test.md b/tests/tool/proselint_tool_plugin/valid_package/test.md
index 5377011..fe4b3c1 100644
--- a/tests/tool/proselint_tool_plugin/valid_package/test.md
+++ b/tests/tool/proselint_tool_plugin/valid_package/test.md
@@ -1,6 +1,6 @@
 # Test Markdown file:
 
 
-Hello World!
+Hello World.
 
 This sentence is very unique
diff --git a/tests/tool/proselint_tool_plugin/valid_package/test_no_issues.md b/tests/tool/proselint_tool_plugin/valid_package/test_no_issues.md
index 45406fb..446f154 100644
--- a/tests/tool/proselint_tool_plugin/valid_package/test_no_issues.md
+++ b/tests/tool/proselint_tool_plugin/valid_package/test_no_issues.md
@@ -1,3 +1,3 @@
 # Test Markdown file
 
-Hello World!
+Hello World.