diff --git a/data_scientist/project_3_customer_segments/requirements.txt b/data_scientist/project_3_customer_segments/requirements.txt
index 4b1a278..cb09901 100644
--- a/data_scientist/project_3_customer_segments/requirements.txt
+++ b/data_scientist/project_3_customer_segments/requirements.txt
@@ -139,9 +139,9 @@ matplotlib==3.1.1 \
     --hash=sha256:c1fe1e6cdaa53f11f088b7470c2056c0df7d80ee4858dadf6cbe433fcba4323b \
     --hash=sha256:e5b8aeca9276a3a988caebe9f08366ed519fff98f77c6df5b64d7603d0e42e36 \
     --hash=sha256:ec6bd0a6a58df3628ff269978f4a4b924a0d371ad8ce1f8e2b635b99e482877a
-mistune==0.8.4 \
-    --hash=sha256:59a3429db53c50b5c6bcc8a07f8848cb00d7dc8bdb431a4ab41920d201d4756e \
-    --hash=sha256:88a1051873018da288eee8538d476dffe1262495144b33ecb586c4ab266bb8d4
+mistune==2.0.3 \
+    --hash=sha256:d7605b46b6156b53b7d52a465202b29a6f00f4ea4130ad5d25e9d5547d6b7e50 \
+    --hash=sha256:e3964140c0775535fba50bd616fe180920044a64bc21850253267b07bff89924
 nbconvert==5.5.0 \
     --hash=sha256:138381baa41d83584459b5cfecfc38c800ccf1f37d9ddd0bd440783346a4c39c \
     --hash=sha256:4a978548d8383f6b2cfca4a3b0543afb77bc7cb5a96e8b424337ab58c12da9bc