diff --git a/.travis.yml b/.travis.yml
index e180aeef..fed23a15 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -6,7 +6,6 @@ cache:
     directories:
         - node_modules
 python:
-    - 3.4
     - 3.5
     - 3.6
 env:
diff --git a/Pipfile b/Pipfile
index f7b06cee..0bf2d3f0 100644
--- a/Pipfile
+++ b/Pipfile
@@ -11,7 +11,7 @@ djangorestframework = "*"
 django-filter = "*"
 django-widget-tweaks = "*"
 plotly = "*"
-pandas = "<0.22.0"
+pandas = "*"
 faker = "*"
 dj-database-url = "*"
 gunicorn = "*"
diff --git a/Pipfile.lock b/Pipfile.lock
index e4e24ff3..d8ae527e 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -1,7 +1,7 @@
 {
     "_meta": {
         "hash": {
-            "sha256": "c77afa84e0b11ac097b5e4a98267b2553f1c8c94c2f4fb3b832ec6acd485fe31"
+            "sha256": "21a6001d830ce191858fed3bd90d35af9317737dddfcb41a3dd1e714f8e8fd54"
         },
         "pipfile-spec": 6,
         "requires": {},
@@ -15,17 +15,17 @@
     "default": {
         "boto3": {
             "hashes": [
-                "sha256:a2d5c0a007ff50b4a08f402925495e18e41e336d22767a2b4fa21913fa875b2f",
-                "sha256:f303b0feaabbe98b36ab12be1c641799104c935c9e0c9315b6fe53a39d668d79"
+                "sha256:7911f4b593a268a9b218839af972dbeeca886037e1090fa06aaef94276545a4d",
+                "sha256:c5942bb27d364625be6b0521e88ccfcd60a2d2b58b9b126748fb22d613693260"
             ],
-            "version": "==1.7.14"
+            "version": "==1.7.24"
         },
         "botocore": {
             "hashes": [
-                "sha256:2d83993e60ba56ca3ddb48a0d4da86c1cfa1f687993abe760eeb0059d10e52f6",
-                "sha256:5e61efeb68688149fb8220f0bca6c8a89bc998dffb99673d0bf24cfe2f2e47a9"
+                "sha256:710307a7ad4b150099e82845054c340ad5aae7c0c80c773f39ab9b402720e435",
+                "sha256:b7a23361bcd6ce2d9cf56a3e5bc7c6b2e3233f3d902d41cb2dfb37472ea41986"
             ],
-            "version": "==1.10.14"
+            "version": "==1.10.24"
         },
         "certifi": {
             "hashes": [
@@ -116,10 +116,10 @@
         },
         "faker": {
             "hashes": [
-                "sha256:226d8fa67a8cf8b4007aab721f67639f130e9cfdc53a7095a2290ebb07a65c71",
-                "sha256:48fed4b4a191e2b42ad20c14115f1c6d36d338b80192075d7573f0f42d7fb321"
+                "sha256:782a58cec0e083df8e3536b0a890fce9bdc1633782c140b64183dcc626fea53e",
+                "sha256:a77a1a2223a8e0d32618878350bbd2171040f32b526ba2cddfab8864704bb370"
             ],
-            "version": "==0.8.13"
+            "version": "==0.8.15"
         },
         "gunicorn": {
             "hashes": [
@@ -200,23 +200,23 @@
         },
         "pandas": {
             "hashes": [
-                "sha256:009010ac81b24a4a95a7c5cf4e977cdc8e0650d1cba4e45753e13b0fa9bd705f",
-                "sha256:134d11afe9408968a5cfeb1e2b114230c0b65e31cdf0f7aee0f12cab76732182",
-                "sha256:245a399013ef67c3bed30c320bde3c15f306f04e36529ef2d290982d85faf86e",
-                "sha256:255c4f1b6e03fc50c8c90c26593ef1ac383e226a59626575ff303c833c9bb464",
-                "sha256:32dd9e2bd0ac6590db16fc7c85f07d679a20169943b5cbe382a565f73d20c488",
-                "sha256:3acd0ed9fb6e63ca6242cf64ca7835914b0c582558ae797f341fa13a8676b929",
-                "sha256:6229b5937d68c7020577bc8cb73dc724f8cdb685b278518fbecb3523034f6e0d",
-                "sha256:83637686b4218d2a81f209de00c58cc1f8e6f0d979592dc6bc5255b1a3b33f7a",
-                "sha256:916dc824236c16162b39161eb2ce2b1085d70dee34f3b7582270145382d74fd5",
-                "sha256:ab3e6c8c1b8cce2620e66b35bb93d79f8f4b887e5e18e2a911d9fef1eaee00d9",
-                "sha256:b1157f2986d23ab93df178defca4a079a8897f97b5704b028983bd325536fdf6",
-                "sha256:c5f5cba88bf0659554c41c909e1f78139f6fce8fa9315a29a23692b38ff9788a",
-                "sha256:cf75f806d0ccaa0daa26c5a59ad48c2462a28d38e4dc99140b2809315cb1a7c0",
-                "sha256:eaabe40119d5bd1c1b5662858d882a91f1726158402b531f1a9a256a35c889a7",
-                "sha256:fbf77fa2651c6dfb5444b3054f0802b37c930c1a55abdd417f88fc32adb5d8fd"
+                "sha256:295cf212054b28f1d111f3ffff932a012601558424ec892f2450d6197f6eeb92",
+                "sha256:29960ea1783c59fe86b323799b130592149e0f7bb739149e7fc512b0272d9fc3",
+                "sha256:29dde0874d1efb8a346f8d919b0530a9ae788ad1003752376133e38df09e6fcb",
+                "sha256:2d6b7b152a6ba44627c60df291f773c4438df01653abcbec7fc556d6039f1705",
+                "sha256:5de7275fc7222211dcac603ea81f1e143c45f8ec41d2e21df71aad0c95c1097c",
+                "sha256:7261b3567804a70714cc2591e2f7f1e372379db9e140f9d7ffb4b8884eaa48f7",
+                "sha256:758b8f6c68bc99b2eb64e57092d3aa07bd68a774e92e7686e473e0d9c86a2309",
+                "sha256:835c5a2aeaa3cb5ef2a1d771c75ee3a73d6ad1b82cfc54677c8f863c75fa51bd",
+                "sha256:8398d7a47ae667a639ac4ee6724d7ef98602b5ff2b10b5b4d5e6ab45a8d596d2",
+                "sha256:84ab1d50590cb2d9554211f164dc1b1a216bc94da2ba922aed2690c83f248fd9",
+                "sha256:98054c04318ba46bb81433230c2e5fab6a68df916ccb5355d428907bfb16b257",
+                "sha256:9e5ee41d1550ec36093c95e30644e313df4b57c1cdead545754d9c113aecbbb5",
+                "sha256:d4495aba61060d87c634fc777ac15aecd1d176987e5ed0585a3ed7e2f4e6c1f7",
+                "sha256:d5f72c8239e46cfcc363c7e532a474b7ea3d8892b7b6e5ec0da6b3ebae2a07d3",
+                "sha256:d88f484a25ac212fd720b5f9b9686e83f86df2b091b51f4b7b1d9089bd842f79"
             ],
-            "version": "==0.21.1"
+            "version": "==0.23.0"
         },
         "pillow": {
             "hashes": [
@@ -268,9 +268,9 @@
         },
         "plotly": {
             "hashes": [
-                "sha256:9dd816c36271cf81d82c854fba866c743cbd8cc71f1c95384195307def859a69"
+                "sha256:66c0adb1928deda4c1e6a19d1afa3296b57918018500cab83e1ec74941b6fe35"
             ],
-            "version": "==2.5.1"
+            "version": "==2.6.0"
         },
         "psycopg2-binary": {
             "hashes": [
@@ -306,10 +306,10 @@
         },
         "python-dateutil": {
             "hashes": [
-                "sha256:3220490fb9741e2342e1cf29a503394fdac874bc39568288717ee67047ff29df",
-                "sha256:9d8074be4c993fbe4947878ce593052f71dac82932a677d49194d8ce9778002e"
+                "sha256:1adb80e7a782c12e52ef9a8182bebeb73f1d7e24e374397af06fb4956c8dc5c0",
+                "sha256:e27001de32f627c22380a688bcc43ce83504a7bc5da472209b4c70f02829f0b8"
             ],
-            "version": "==2.7.2"
+            "version": "==2.7.3"
         },
         "python-dotenv": {
             "hashes": [
diff --git a/README.md b/README.md
index c6ce41d0..f147582b 100644
--- a/README.md
+++ b/README.md
@@ -165,7 +165,7 @@ and then uploaded to a server.
 
 #### Requirements
 
-- Python 3.4+, pip, pipenv
+- Python 3.5+, pip, pipenv
 - Web server ([nginx](http://nginx.org/), [Apache](http://httpd.apache.org/), etc.)
 - Application server ([uwsgi](http://projects.unbit.it/uwsgi), [gunicorn](http://gunicorn.org/), etc.)
 - Database ([sqlite](https://sqlite.org/), [Postgres](https://www.postgresql.org/), [MySQL](https://www.mysql.com/), etc.)
@@ -175,10 +175,10 @@ and then uploaded to a server.
 #### Example deployment
 
 *This example assumes a 512MB VPS instance with Ubuntu 16.04 **x32**.* It uses
-Python 3.x, nginx, uwsgi and sqlite and should be sufficient for a few users
+Python 3.5+, nginx, uwsgi and sqlite and should be sufficient for a few users
 (e.g. two parents and 1+ child).
 
-1. Install Python 3.x, pip, nginx and uwsgi
+1. Install Python 3.5+, pip, nginx and uwsgi
 
         sudo apt-get install python3 python3-pip nginx uwsgi uwsgi-plugin-python3 git libopenjp2-7-dev
 
@@ -537,7 +537,7 @@ multiple fields).
 
 ### Requirements
 
-- Python 3.4+, pip, pipenv
+- Python 3.5+, pip, pipenv
 - NodeJS 8.x and NPM 5.x
 - Gulp