diff --git a/Dockerfile b/Dockerfile
index bfb2a32..105a1bf 100755
--- a/Dockerfile
+++ b/Dockerfile
@@ -72,7 +72,7 @@ RUN ./configure --with-python --with-geos=yes \
     && sudo ldconfig
 WORKDIR /
 
-# Install iRODS v.4.2.6
+# Install iRODS
 RUN wget -qO - https://packages.irods.org/irods-signing-key.asc | sudo apt-key add - \
     && echo "deb [arch=amd64] https://packages.irods.org/apt/ trusty main" | \
     sudo tee /etc/apt/sources.list.d/renci-irods.list \
diff --git a/requirements.txt b/requirements.txt
index d19ac7d..8c65839 100755
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
-amqp==2.5.0
+amqp==2.5.2
 anyjson==0.3.3
 arrow==0.7.0
 autopep8==1.2.2
 bagit==1.5.4
-celery==4.3.0
+celery==4.4.0
 cffi==1.11.5
 click==6.7
 coreapi==2.3.3
@@ -11,7 +11,7 @@ coverage==4.0.3
 cycler==0.10.0
 #defusedexpat==0.4
 defusedxml==0.4.1
-Django==1.11.23
+Django==1.11.28
 django-appconf==1.0.2
 django-autocomplete-light==2.3.3
 django-braces==1.9.0
@@ -56,11 +56,11 @@ gunicorn==19.6.0
 html5lib==0.9999999
 inflection==0.3.1
 isodate==0.5.4
-Jinja2==2.10
+Jinja2==2.10.1
 jsonpointer==1.14
 jsonschema==2.6.0
 keepalive==0.5
-kombu==4.6.3
+kombu==4.6.7
 lxml==4.4.0
 #mapnik==0.1
 Markdown==3.0.1
@@ -95,7 +95,7 @@ python-crfsuite==0.9.6
 python-dateutil==2.5.3
 python-irodsclient==0.8.1 
 pytz==2016.3
-PyYAML==5.1
+PyYAML==5.1.2
 rcssmin==1.0.6
 rdflib==4.0.1
 redis==2.10.5