diff --git a/Dockerfile b/Dockerfile
index 9b1136f10..3f55ef172 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.5-alpine
+FROM python:3.8-alpine
 
 RUN apk add --update \
     supervisor \
@@ -24,6 +24,8 @@ RUN ln -sf /dev/stdout /var/log/nginx/access.log && \
 
 ADD . .
 
+RUN mkdir /etc/nginx/conf.d
+
 RUN mv docker/nginx/nginx.conf /etc/nginx/nginx.conf && \
     mv docker/nginx/default.conf /etc/nginx/conf.d/default.conf && \
     mv docker/supervisor.conf /etc/supervisor.conf && \
diff --git a/requirements.txt b/requirements.txt
index bdda42ecf..734ebab3e 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -15,7 +15,8 @@ raven[flask]==6.0.0
 
 # Database
 pymysql==0.8.0
-SQLAlchemy>=1.3.0
+SQLAlchemy<1.4.0
+markupsafe==2.0.1
 
 # Caching
 redis==2.10.5
@@ -76,7 +77,7 @@ idna<2.9,>=2.5
 # Front end
 itsdangerous==0.24
 cssmin==0.2.0
-jsmin==2.2.1
+jsmin==3.0.1
 hashids==1.2.0
 pygments==2.2.0
 humanize==0.5.1