diff --git a/build_image/docker/common/api-engine/Dockerfile.in b/build_image/docker/common/api-engine/Dockerfile.in
index ca2f0c3e..7f4fff1b 100644
--- a/build_image/docker/common/api-engine/Dockerfile.in
+++ b/build_image/docker/common/api-engine/Dockerfile.in
@@ -14,7 +14,7 @@ WORKDIR /var/www/server
 COPY src/api-engine ./
 
 # Install python dependencies
-RUN	pip install --no-cache-dir -r requirements.txt
+RUN	pip install -r requirements.txt
 
 # Add uwsgi configuration file
 COPY build_image/docker/common/api-engine/server.ini /etc/uwsgi/apps-enabled/
diff --git a/src/api-engine/api_engine/settings.py.example b/src/api-engine/api_engine/settings.py.example
index 280fc2ec..338ad4fa 100644
--- a/src/api-engine/api_engine/settings.py.example
+++ b/src/api-engine/api_engine/settings.py.example
@@ -24,7 +24,7 @@ BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 SECRET_KEY = "=5-oa588z5-5ow4wd8+=xoj%uy_rd6a65edkfvn3&zw+1=qhwd"
 
 # SECURITY WARNING: don't run with debug turned on in production!
-DEBUG = $DEBUG
+DEBUG = ${DEBUG}
 
 ALLOWED_HOSTS = ["*"]
 
diff --git a/src/api-engine/requirements.txt b/src/api-engine/requirements.txt
index 2bf045cf..35a22024 100644
--- a/src/api-engine/requirements.txt
+++ b/src/api-engine/requirements.txt
@@ -1,20 +1,20 @@
-Django>=2.2.10,<=3.0.4
-uwsgi<=2.0.17.1
-djangorestframework<=3.9.0
-django-filter<=1.1.0
-drf-yasg<=1.11.1
-flex<=6.13.2
-swagger_spec_validator<=2.4.1
-psycopg2-binary<=2.7.7
-holdup>1.5.0,<=1.6.0
-django-extensions<=2.1.6
-pygraphviz<=1.5
+Django>=3.0.0,<4.0.0
 celery<=4.2.1
-redis<=3.2.0
-# docker-compose>=1.18.0,<=1.25.4
-watchdog<=0.9.0
-django-allauth<=0.39.1
-django-rest-auth<=0.9.3
-djangorestframework-jwt<=1.11.0
-kubernetes<=10.0.1
+django-allauth>=0.39.0,<=0.41.0
 django-cors-headers
+django-extensions>=2.1.9,<=2.2.9
+django-filter>=2.0.0,<=2.0.0
+django-rest-auth>=0.9.3,<=0.9.5
+djangorestframework-jwt<=1.11.0
+djangorestframework>=3.0.0,<=3.11.0
+docker>=4.0.0,<=4.2.0
+drf-yasg>=1.11.1,<=1.17.1
+flex>=6.13.2,<=6.14.2
+holdup>1.5.0,<=1.8.0
+kubernetes>=10.0.0,<=11.0.1
+psycopg2-binary>=2.7.0,<=2.8.4
+pygraphviz<=1.5
+redis>=3.2.0,<=3.4.1
+swagger_spec_validator>=2.4.0,<=2.5.0
+uwsgi>=2.0.17.0,<=2.0.18.1
+watchdog>=0.9.0,<=0.10.2
\ No newline at end of file