diff --git a/04/title.txt b/04/title.txt
new file mode 100644
index 0000000..fe57cf5
--- /dev/null
+++ b/04/title.txt
@@ -0,0 +1 @@
+Wase 4
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 67b8bba..0f6998a 100644
--- a/manifest.json
+++ b/manifest.json
@@ -58,6 +58,8 @@
 		"03-09",
 		"03-11",
 		"03-13",
-		"03-16"
+		"03-16",
+		"03-23",
+		"04-title"
 	]
 }
\ No newline at end of file