diff --git a/2-Regression/4-Logistic/solution/R/lesson_4R.md b/2-Regression/4-Logistic/solution/R/lesson_4.Rmd similarity index 100% rename from 2-Regression/4-Logistic/solution/R/lesson_4R.md rename to 2-Regression/4-Logistic/solution/R/lesson_4.Rmd