Updates package hashes.

.travis.yml

@@ -18,7 +18,7 @@ before_install:
 install:
   - pip install pipenv pytest coverage
   - export PATH=$PATH:$HOME/.local/bin;
-  - pipenv install
+  - pipenv install --dev
 
 env:
   global:

Pipfile.lock

@@ -751,11 +751,11 @@
         },
         "sphinx": {
             "hashes": [
-                "sha256:1c445320a3310baa5ccb8d957267ef4a0fc930dc1234db5098b3d7af14fbb242",
-                "sha256:7d3d5087e39ab5a031b75588e9859f011de70e213cd0080ccbc28079fb0786d1"
+                "sha256:74fbead182a611ce1444f50218a1c5fc70b6cc547f64948f5182fb30a2a20258",
+                "sha256:97c9e3bcce2f61d9f5edf131299ee9d1219630598d9f9a8791459a4d9e815be5"
             ],
             "index": "pypi",
-            "version": "==3.1.0"
+            "version": "==3.1.1"
         },
         "sphinxcontrib-applehelp": {
             "hashes": [
@@ -932,10 +932,10 @@
         },
         "more-itertools": {
             "hashes": [
-                "sha256:558bb897a2232f5e4f8e2399089e35aecb746e1f9191b6584a151647e89267be",
-                "sha256:7818f596b1e87be009031c7653d01acc46ed422e6656b394b0f765ce66ed4982"
+                "sha256:68c70cc7167bdf5c7c9d8f6954a7837089c6a36bf565383919bb595efb8a17e5",
+                "sha256:b78134b2063dd214000685165d81c154522c3ee0a1c0d4d113c80361c234c5a2"
             ],
-            "version": "==8.3.0"
+            "version": "==8.4.0"
         },
         "packaging": {
             "hashes": [
@@ -961,10 +961,10 @@
         },
         "py": {
             "hashes": [
-                "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa",
-                "sha256:c20fdd83a5dbc0af9efd622bee9a5564e278f6380fffcacc43ba6f43db2813b0"
+                "sha256:a673fa23d7000440cc885c17dbd34fafcb7d7a6e230b29f6766400de36a33c44",
+                "sha256:f3b3a4c36512a4c4f024041ab51866f11761cc169670204b235f6b20523d4e6b"
             ],
-            "version": "==1.8.1"
+            "version": "==1.8.2"
         },
         "pyparsing": {
             "hashes": [