diff --git a/pi_server/Pipfile.lock b/pi_server/Pipfile.lock
index 7dd28e1..914a0b6 100644
--- a/pi_server/Pipfile.lock
+++ b/pi_server/Pipfile.lock
@@ -16,11 +16,11 @@
     "default": {
         "django": {
             "hashes": [
-                "sha256:275bec66fd2588dd517ada59b8bfb23d4a9abc5a362349139ddda3c7ff6f5ade",
-                "sha256:939652e9d34d7d53d74d5d8ef82a19e5f8bb2de75618f7e5360691b6e9667963"
+                "sha256:1a41831eace203fd1939edf899e07d7abd12ce9bafc3d9a5a63a24a8d1d12bd5",
+                "sha256:305b6c4fce9e03bb746e35780c2c4d52f29ea1669f15633cfd41bc8821c74c76"
             ],
             "index": "pypi",
-            "version": "==2.1.7"
+            "version": "==2.1.11"
         },
         "python-dotenv": {
             "hashes": [
@@ -32,10 +32,10 @@
         },
         "pytz": {
             "hashes": [
-                "sha256:32b0891edff07e28efe91284ed9c31e123d84bea3fd98e1f72be2508f43ef8d9",
-                "sha256:d5f05e487007e29e03409f9398d074e158d920d36eb82eaf66fb1136b0c5374c"
+                "sha256:1c557d7d0e871de1f5ccd5833f60fb2550652da6be2693c1e02300743d21500d",
+                "sha256:b02c06db6cf09c12dd25137e563b31700d3b80fcc4ad23abb7a315f2789819be"
             ],
-            "version": "==2018.9"
+            "version": "==2019.3"
         }
     },
     "develop": {}
diff --git a/pi_server/requirements.txt b/pi_server/requirements.txt
index fe6e2bd..d460982 100644
--- a/pi_server/requirements.txt
+++ b/pi_server/requirements.txt
@@ -1,3 +1,4 @@
-django==2.1.7
+-i https://pypi.org/simple/
+django==2.1.11
 python-dotenv==0.10.1
-pytz==2018.9
+pytz==2019.3