diff --git a/CMakeLists.txt b/CMakeLists.txt
index be0c5f4..d7999c9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -77,9 +77,9 @@ set(1.getting_started
     3.3.shaders_class
     4.1.textures
     4.2.textures_combined
-    4.3.textures_exercise2
-    4.4.textures_exercise3
-    4.5.textures_exercise4
+    4.4.textures_exercise2
+    4.5.textures_exercise3
+    4.6.textures_exercise4
     5.1.transformations
     5.2.transformations_exercise2
     6.1.coordinate_systems