diff --git a/exercises/automatic-instrumentation/initial/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java b/exercises/automatic-instrumentation/initial/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
similarity index 100%
rename from exercises/automatic-instrumentation/initial/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java
rename to exercises/automatic-instrumentation/initial/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
diff --git a/exercises/automatic-instrumentation/solution/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java b/exercises/automatic-instrumentation/solution/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
similarity index 100%
rename from exercises/automatic-instrumentation/solution/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java
rename to exercises/automatic-instrumentation/solution/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
diff --git a/exercises/manual-instrumentation-java/initial/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java b/exercises/manual-instrumentation-java/initial/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
similarity index 100%
rename from exercises/manual-instrumentation-java/initial/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java
rename to exercises/manual-instrumentation-java/initial/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
diff --git a/exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/io/novatec/todoui/OpenTelemetryConfiguration.java b/exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/com/example/todoui/OpenTelemetryConfiguration.java
similarity index 100%
rename from exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/io/novatec/todoui/OpenTelemetryConfiguration.java
rename to exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/com/example/todoui/OpenTelemetryConfiguration.java
diff --git a/exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/io/novatec/todoui/TodouiApplication.java b/exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/com/example/todoui/TodouiApplication.java
similarity index 100%
rename from exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/io/novatec/todoui/TodouiApplication.java
rename to exercises/manual-instrumentation-java/initial/todoui-thymeleaf/src/main/java/com/example/todoui/TodouiApplication.java
diff --git a/exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/io/novatec/todobackend/OpenTelemetryConfiguration.java b/exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/com/example/todobackend/OpenTelemetryConfiguration.java
similarity index 100%
rename from exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/io/novatec/todobackend/OpenTelemetryConfiguration.java
rename to exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/com/example/todobackend/OpenTelemetryConfiguration.java
diff --git a/exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java b/exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
similarity index 100%
rename from exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java
rename to exercises/manual-instrumentation-java/solution/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
diff --git a/exercises/otel-in-action/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java b/exercises/otel-in-action/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
similarity index 100%
rename from exercises/otel-in-action/todobackend-springboot/src/main/java/io/novatec/todobackend/TodobackendApplication.java
rename to exercises/otel-in-action/todobackend-springboot/src/main/java/com/example/todobackend/TodobackendApplication.java
diff --git a/exercises/otel-in-action/todoui-thymeleaf/src/main/java/io/novatec/todoui/TodouiApplication.java b/exercises/otel-in-action/todoui-thymeleaf/src/main/java/com/example/todoui/TodouiApplication.java
similarity index 100%
rename from exercises/otel-in-action/todoui-thymeleaf/src/main/java/io/novatec/todoui/TodouiApplication.java
rename to exercises/otel-in-action/todoui-thymeleaf/src/main/java/com/example/todoui/TodouiApplication.java