diff --git a/Dockerfile b/Dockerfile
index f67f93b..50c74b9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM reg.zknt.org/zknt/python:3.7.3-r0
+FROM reg.zknt.org/zknt/python
 
 COPY requirements.txt /app/requirements.txt
 WORKDIR /app
diff --git a/requirements.txt b/requirements.txt
index 3afcfba..322acfb 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-beautifulsoup4==4.6.3
+beautifulsoup4==4.9.0
 feedgen==0.9.0
-requests==2.20.1
-python-slugify==1.2.6
-Flask==1.0.2
-Markdown==3.0.1
+requests==2.23.0
+python-slugify==4.0.0
+Flask==1.1.2
+Markdown==3.2.2