diff --git a/Pipfile.lock b/Pipfile.lock
index 5f218198..03e7195e 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -177,11 +177,6 @@
             "index": "pypi",
             "version": "==0.9.2"
         },
-        "piker": {
-            "editable": true,
-            "git": "git@github.com:pikers/piker.git",
-            "ref": "a5a7a92d59e386368801982bd8c04bcc48633b40"
-        },
         "pygments": {
             "hashes": [
                 "sha256:78f3f434bcc5d6ee09020f92ba487f95ba50f1e3ef83ae96b9d5ffa1bab25c5d",
@@ -198,17 +193,10 @@
         },
         "pytz": {
             "hashes": [
-                "sha256:07edfc3d4d2705a20a6e99d97f0c4b61c800b8232dc1c04d87e8554f130148dd",
-                "sha256:3a47ff71597f821cd84a162e71593004286e5be07a340fd462f0d33a760782b5",
-                "sha256:410bcd1d6409026fbaa65d9ed33bf6dd8b1e94a499e32168acfc7b332e4095c0",
-                "sha256:5bd55c744e6feaa4d599a6cbd8228b4f8f9ba96de2c38d56f08e534b3c9edf0d",
-                "sha256:61242a9abc626379574a166dc0e96a66cd7c3b27fc10868003fa210be4bff1c9",
-                "sha256:887ab5e5b32e4d0c86efddd3d055c1f363cbaa583beb8da5e22d2fa2f64d51ef",
-                "sha256:ba18e6a243b3625513d85239b3e49055a2f0318466e0b8a92b8fb8ca7ccdf55f",
-                "sha256:ed6509d9af298b7995d69a440e2822288f2eca1681b8cce37673dbb10091e5fe",
-                "sha256:f93ddcdd6342f94cea379c73cddb5724e0d6d0a1c91c9bdef364dc0368ba4fda"
+                "sha256:65ae0c8101309c45772196b21b74c46b2e5d11b6275c45d251b150d5da334555",
+                "sha256:c06425302f2cf668f1bba7a0a03f3c1d34d4ebeef2c72003da308b3947c7f749"
             ],
-            "version": "==2018.3"
+            "version": "==2018.4"
         },
         "six": {
             "hashes": [
@@ -441,17 +429,10 @@
         },
         "pytz": {
             "hashes": [
-                "sha256:07edfc3d4d2705a20a6e99d97f0c4b61c800b8232dc1c04d87e8554f130148dd",
-                "sha256:3a47ff71597f821cd84a162e71593004286e5be07a340fd462f0d33a760782b5",
-                "sha256:410bcd1d6409026fbaa65d9ed33bf6dd8b1e94a499e32168acfc7b332e4095c0",
-                "sha256:5bd55c744e6feaa4d599a6cbd8228b4f8f9ba96de2c38d56f08e534b3c9edf0d",
-                "sha256:61242a9abc626379574a166dc0e96a66cd7c3b27fc10868003fa210be4bff1c9",
-                "sha256:887ab5e5b32e4d0c86efddd3d055c1f363cbaa583beb8da5e22d2fa2f64d51ef",
-                "sha256:ba18e6a243b3625513d85239b3e49055a2f0318466e0b8a92b8fb8ca7ccdf55f",
-                "sha256:ed6509d9af298b7995d69a440e2822288f2eca1681b8cce37673dbb10091e5fe",
-                "sha256:f93ddcdd6342f94cea379c73cddb5724e0d6d0a1c91c9bdef364dc0368ba4fda"
+                "sha256:65ae0c8101309c45772196b21b74c46b2e5d11b6275c45d251b150d5da334555",
+                "sha256:c06425302f2cf668f1bba7a0a03f3c1d34d4ebeef2c72003da308b3947c7f749"
             ],
-            "version": "==2018.3"
+            "version": "==2018.4"
         },
         "six": {
             "hashes": [