diff --git a/ml4/2_5_1_Exercise.ipynb b/ml4/2_5_1_Exercise.ipynb
index 617e00f..a522340 100644
--- a/ml4/2_5_1_Exercise.ipynb
+++ b/ml4/2_5_1_Exercise.ipynb
@@ -56,7 +56,7 @@
    "metadata": {},
    "source": [
     "# Genetic Algorithms\n",
-    "In this section, we are going to use the library DEAP [[References](#References)] for implementing a genetic algorithms.\n",
+    "In this section, we are going to use the library DEAP [References](#References) for implementing a genetic algorithms.\n",
     "\n",
     "We are going to implement the OneMax problem as seen in class.\n",
     "\n",