diff --git a/package-lock.json b/package-lock.json
index 337996c4..d5f039f9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4548,11 +4548,11 @@
       "integrity": "sha1-WW6WmP0MgOEgOMK4LW6xs1tiJNk="
     },
     "d3-array": {
-      "version": "2.11.0",
-      "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-2.11.0.tgz",
-      "integrity": "sha512-26clcwmHQEdsLv34oNKq5Ia9tQ26Y/4HqS3dQzF42QBUqymZJ+9PORcN1G52bt37NsL2ABoX4lvyYZc+A9Y0zw==",
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/d3-array/-/d3-array-3.2.0.tgz",
+      "integrity": "sha512-3yXFQo0oG3QCxbF06rMPFyGRMGJNS7NvsV1+2joOjbBE+9xvWQ8+GcMJAjRCzw06zQ3/arXeJgbPYcjUCuC+3g==",
       "requires": {
-        "internmap": "^1.0.0"
+        "internmap": "1 - 2"
       }
     },
     "d3-axis": {
@@ -4561,9 +4561,9 @@
       "integrity": "sha512-ejINPfPSNdGFKEOAtnBtdkpr24c4d4jsei6Lg98mxf424ivoDP2956/5HDpIAtmHo85lqT4pruy+zEgvRUBqaQ=="
     },
     "d3-color": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-1.4.1.tgz",
-      "integrity": "sha512-p2sTHSLCJI2QKunbGb7ocOh7DgTAn8IrLx21QRc/BSnodXM4sv6aLQlnfpvehFMLZEfBc6g9pH9SWQccFYfJ9Q=="
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/d3-color/-/d3-color-3.1.0.tgz",
+      "integrity": "sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA=="
     },
     "d3-dsv": {
       "version": "1.2.0",
@@ -4599,23 +4599,23 @@
       "integrity": "sha512-mm/nE2Y9HgGyjP+rKIekeITVgBtX97o1nrvHCWX8F/yBYyevUTvu9vb5pUnKwrcSw7o7GuwMOWjS9gFDs4O+uQ=="
     },
     "d3-interpolate": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/d3-interpolate/-/d3-interpolate-1.4.0.tgz",
-      "integrity": "sha512-V9znK0zc3jOPV4VD2zZn0sDhZU3WAE2bmlxdIwwQPPzPjvyLkd8B3JUVdS1IDUFDkWZ72c9qnv1GK2ZagTZ8EA==",
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/d3-interpolate/-/d3-interpolate-3.0.1.tgz",
+      "integrity": "sha512-3bYs1rOD33uo8aqJfKP3JWPAibgw8Zm2+L9vBKEHJ2Rg+viTR7o5Mmv5mZcieN+FRYaAOWX5SJATX6k1PWz72g==",
       "requires": {
-        "d3-color": "1"
+        "d3-color": "1 - 3"
       }
     },
     "d3-scale": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/d3-scale/-/d3-scale-3.2.1.tgz",
-      "integrity": "sha512-huz5byJO/6MPpz6Q8d4lg7GgSpTjIZW/l+1MQkzKfu2u8P6hjaXaStOpmyrD6ymKoW87d2QVFCKvSjLwjzx/rA==",
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/d3-scale/-/d3-scale-4.0.2.tgz",
+      "integrity": "sha512-GZW464g1SH7ag3Y7hXjf8RoUuAFIqklOAq3MRl4OaWabTFJY9PN/E1YklhXLh+OQ3fM9yS2nOkCoS+WLZ6kvxQ==",
       "requires": {
-        "d3-array": "1.2.0 - 2",
-        "d3-format": "1",
-        "d3-interpolate": "^1.2.0",
-        "d3-time": "1",
-        "d3-time-format": "2"
+        "d3-array": "2.10.0 - 3",
+        "d3-format": "1 - 3",
+        "d3-interpolate": "1.2.0 - 3",
+        "d3-time": "2.1.1 - 3",
+        "d3-time-format": "2 - 4"
       }
     },
     "d3-selection": {
@@ -4624,16 +4624,19 @@
       "integrity": "sha512-BTIbRjv/m5rcVTfBs4AMBLKs4x8XaaLkwm28KWu9S2vKNqXkXt2AH2Qf0sdPZHjFxcWg/YL53zcqAz+3g4/7PA=="
     },
     "d3-time": {
-      "version": "1.1.0",
-      "resolved": "https://registry.npmjs.org/d3-time/-/d3-time-1.1.0.tgz",
-      "integrity": "sha512-Xh0isrZ5rPYYdqhAVk8VLnMEidhz5aP7htAADH6MfzgmmicPkTo8LhkLxci61/lCB7n7UmE3bN0leRt+qvkLxA=="
+      "version": "3.0.0",
+      "resolved": "https://registry.npmjs.org/d3-time/-/d3-time-3.0.0.tgz",
+      "integrity": "sha512-zmV3lRnlaLI08y9IMRXSDshQb5Nj77smnfpnd2LrBa/2K281Jijactokeak14QacHs/kKq0AQ121nidNYlarbQ==",
+      "requires": {
+        "d3-array": "2 - 3"
+      }
     },
     "d3-time-format": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/d3-time-format/-/d3-time-format-2.3.0.tgz",
-      "integrity": "sha512-guv6b2H37s2Uq/GefleCDtbe0XZAuy7Wa49VGkPVPMfLL9qObgBST3lEHJBMUp8S7NdLQAGIvr2KXk8Hc98iKQ==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/d3-time-format/-/d3-time-format-4.1.0.tgz",
+      "integrity": "sha512-dJxPBlzC7NugB2PDLwo9Q8JiTR3M3e4/XANkreKSUxF8vvXKqm1Yfq4Q5dl8budlunRVlUUaDUgFt7eA8D6NLg==",
       "requires": {
-        "d3-time": "1"
+        "d3-time": "1 - 3"
       }
     },
     "damerau-levenshtein": {
@@ -9473,9 +9476,9 @@
       }
     },
     "internmap": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/internmap/-/internmap-1.0.0.tgz",
-      "integrity": "sha512-SdoDWwNOTE2n4JWUsLn4KXZGuZPjPF9yyOGc8bnfWnBQh7BD/l80rzSznKc/r4Y0aQ7z3RTk9X+tV4tHBpu+dA=="
+      "version": "2.0.3",
+      "resolved": "https://registry.npmjs.org/internmap/-/internmap-2.0.3.tgz",
+      "integrity": "sha512-5Hh7Y1wQbvY5ooGgPbDaL5iYLAPzMTUrjMulskHLH6wnv/A+1q5rgEaiuqEjB+oxGXIVZs1FF+R/KPN3ZSQYYg=="
     },
     "into-stream": {
       "version": "3.1.0",
diff --git a/package.json b/package.json
index 3316ae36..fef12c99 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "d3-axis": "^1.0.12",
     "d3-fetch": "^1.1.2",
     "d3-format": "^1.4.3",
-    "d3-scale": "^3.2.1",
+    "d3-scale": "^4.0.2",
     "d3-selection": "^1.4.1",
     "dotenv": "^6.1.0",
     "gatsby": "^2.0.35",
diff --git a/yarn.lock b/yarn.lock
index 66e04032..787b00b2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4250,20 +4250,22 @@ cyclist@^1.0.1:
   resolved "https://registry.yarnpkg.com/cyclist/-/cyclist-1.0.1.tgz#596e9698fd0c80e12038c2b82d6eb1b35b6224d9"
   integrity sha1-WW6WmP0MgOEgOMK4LW6xs1tiJNk=
 
-d3-array@^2.3.0:
-  version "2.8.0"
-  resolved "https://registry.yarnpkg.com/d3-array/-/d3-array-2.8.0.tgz#f76e10ad47f1f4f75f33db5fc322eb9ffde5ef23"
-  integrity sha512-6V272gsOeg7+9pTW1jSYOR1QE37g95I3my1hBmY+vOUNHRrk9yt4OTz/gK7PMkVAVDrYYq4mq3grTiZ8iJdNIw==
+"d3-array@2 - 3", "d3-array@2.10.0 - 3":
+  version "3.2.0"
+  resolved "https://registry.yarnpkg.com/d3-array/-/d3-array-3.2.0.tgz#15bf96cd9b7333e02eb8de8053d78962eafcff14"
+  integrity sha512-3yXFQo0oG3QCxbF06rMPFyGRMGJNS7NvsV1+2joOjbBE+9xvWQ8+GcMJAjRCzw06zQ3/arXeJgbPYcjUCuC+3g==
+  dependencies:
+    internmap "1 - 2"
 
 d3-axis@^1.0.12:
   version "1.0.12"
   resolved "https://registry.yarnpkg.com/d3-axis/-/d3-axis-1.0.12.tgz#cdf20ba210cfbb43795af33756886fb3638daac9"
   integrity sha512-ejINPfPSNdGFKEOAtnBtdkpr24c4d4jsei6Lg98mxf424ivoDP2956/5HDpIAtmHo85lqT4pruy+zEgvRUBqaQ==
 
-"d3-color@1 - 2":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/d3-color/-/d3-color-2.0.0.tgz#8d625cab42ed9b8f601a1760a389f7ea9189d62e"
-  integrity sha512-SPXi0TSKPD4g9tw0NMZFnR95XVgUZiBH+uUTqQuDu1OsE2zomHU7ho0FISciaPvosimixwHFl3WHLGabv6dDgQ==
+"d3-color@1 - 3":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/d3-color/-/d3-color-3.1.0.tgz#395b2833dfac71507f12ac2f7af23bf819de24e2"
+  integrity sha512-zg/chbXyeBtMQ1LbD/WSoW2DpC3I0mpmPdW+ynRTj/x2DAWYrIY7qeZIHidozwV24m4iavr15lNwIwLxRmOxhA==
 
 d3-dsv@1:
   version "1.2.0"
@@ -4281,50 +4283,52 @@ d3-fetch@^1.1.2:
   dependencies:
     d3-dsv "1"
 
-"d3-format@1 - 2":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/d3-format/-/d3-format-2.0.0.tgz#a10bcc0f986c372b729ba447382413aabf5b0767"
-  integrity sha512-Ab3S6XuE/Q+flY96HXT0jOXcM4EAClYFnRGY5zsjRGNy6qCYrQsMffs7cV5Q9xejb35zxW5hf/guKw34kvIKsA==
+"d3-format@1 - 3":
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/d3-format/-/d3-format-3.1.0.tgz#9260e23a28ea5cb109e93b21a06e24e2ebd55641"
+  integrity sha512-YyUI6AEuY/Wpt8KWLgZHsIU86atmikuoOmCfommt0LYHiQSPjvX2AcFc38PX0CBpr2RCyZhjex+NS/LPOv6YqA==
 
 d3-format@^1.4.3:
   version "1.4.5"
   resolved "https://registry.yarnpkg.com/d3-format/-/d3-format-1.4.5.tgz#374f2ba1320e3717eb74a9356c67daee17a7edb4"
   integrity sha512-J0piedu6Z8iB6TbIGfZgDzfXxUFN3qQRMofy2oPdXzQibYGqPB/9iMcxr/TGalU+2RsyDO+U4f33id8tbnSRMQ==
 
-"d3-interpolate@1.2.0 - 2":
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/d3-interpolate/-/d3-interpolate-2.0.1.tgz#98be499cfb8a3b94d4ff616900501a64abc91163"
-  integrity sha512-c5UhwwTs/yybcmTpAVqwSFl6vrQ8JZJoT5F7xNFK9pymv5C0Ymcc9/LIJHtYIggg/yS9YHw8i8O8tgb9pupjeQ==
+"d3-interpolate@1.2.0 - 3":
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/d3-interpolate/-/d3-interpolate-3.0.1.tgz#3c47aa5b32c5b3dfb56ef3fd4342078a632b400d"
+  integrity sha512-3bYs1rOD33uo8aqJfKP3JWPAibgw8Zm2+L9vBKEHJ2Rg+viTR7o5Mmv5mZcieN+FRYaAOWX5SJATX6k1PWz72g==
   dependencies:
-    d3-color "1 - 2"
+    d3-color "1 - 3"
 
-d3-scale@^3.2.1:
-  version "3.2.3"
-  resolved "https://registry.yarnpkg.com/d3-scale/-/d3-scale-3.2.3.tgz#be380f57f1f61d4ff2e6cbb65a40593a51649cfd"
-  integrity sha512-8E37oWEmEzj57bHcnjPVOBS3n4jqakOeuv1EDdQSiSrYnMCBdMd3nc4HtKk7uia8DUHcY/CGuJ42xxgtEYrX0g==
+d3-scale@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/d3-scale/-/d3-scale-4.0.2.tgz#82b38e8e8ff7080764f8dcec77bd4be393689396"
+  integrity sha512-GZW464g1SH7ag3Y7hXjf8RoUuAFIqklOAq3MRl4OaWabTFJY9PN/E1YklhXLh+OQ3fM9yS2nOkCoS+WLZ6kvxQ==
   dependencies:
-    d3-array "^2.3.0"
-    d3-format "1 - 2"
-    d3-interpolate "1.2.0 - 2"
-    d3-time "1 - 2"
-    d3-time-format "2 - 3"
+    d3-array "2.10.0 - 3"
+    d3-format "1 - 3"
+    d3-interpolate "1.2.0 - 3"
+    d3-time "2.1.1 - 3"
+    d3-time-format "2 - 4"
 
 d3-selection@^1.4.1:
   version "1.4.2"
   resolved "https://registry.yarnpkg.com/d3-selection/-/d3-selection-1.4.2.tgz#dcaa49522c0dbf32d6c1858afc26b6094555bc5c"
   integrity sha512-SJ0BqYihzOjDnnlfyeHT0e30k0K1+5sR3d5fNueCNeuhZTnGw4M4o8mqJchSwgKMXCNFo+e2VTChiSJ0vYtXkg==
 
-"d3-time-format@2 - 3":
-  version "3.0.0"
-  resolved "https://registry.yarnpkg.com/d3-time-format/-/d3-time-format-3.0.0.tgz#df8056c83659e01f20ac5da5fdeae7c08d5f1bb6"
-  integrity sha512-UXJh6EKsHBTjopVqZBhFysQcoXSv/5yLONZvkQ5Kk3qbwiUYkdX17Xa1PT6U1ZWXGGfB1ey5L8dKMlFq2DO0Ag==
+"d3-time-format@2 - 4":
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/d3-time-format/-/d3-time-format-4.1.0.tgz#7ab5257a5041d11ecb4fe70a5c7d16a195bb408a"
+  integrity sha512-dJxPBlzC7NugB2PDLwo9Q8JiTR3M3e4/XANkreKSUxF8vvXKqm1Yfq4Q5dl8budlunRVlUUaDUgFt7eA8D6NLg==
   dependencies:
-    d3-time "1 - 2"
+    d3-time "1 - 3"
 
-"d3-time@1 - 2":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/d3-time/-/d3-time-2.0.0.tgz#ad7c127d17c67bd57a4c61f3eaecb81108b1e0ab"
-  integrity sha512-2mvhstTFcMvwStWd9Tj3e6CEqtOivtD8AUiHT8ido/xmzrI9ijrUUihZ6nHuf/vsScRBonagOdj0Vv+SEL5G3Q==
+"d3-time@1 - 3", "d3-time@2.1.1 - 3":
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/d3-time/-/d3-time-3.0.0.tgz#65972cb98ae2d4954ef5c932e8704061335d4975"
+  integrity sha512-zmV3lRnlaLI08y9IMRXSDshQb5Nj77smnfpnd2LrBa/2K281Jijactokeak14QacHs/kKq0AQ121nidNYlarbQ==
+  dependencies:
+    d3-array "2 - 3"
 
 damerau-levenshtein@^1.0.6:
   version "1.0.6"
@@ -7510,6 +7514,11 @@ internal-slot@^1.0.2:
     has "^1.0.3"
     side-channel "^1.0.2"
 
+"internmap@1 - 2":
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/internmap/-/internmap-2.0.3.tgz#6685f23755e43c524e251d29cbc97248e3061009"
+  integrity sha512-5Hh7Y1wQbvY5ooGgPbDaL5iYLAPzMTUrjMulskHLH6wnv/A+1q5rgEaiuqEjB+oxGXIVZs1FF+R/KPN3ZSQYYg==
+
 into-stream@^3.1.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/into-stream/-/into-stream-3.1.0.tgz#96fb0a936c12babd6ff1752a17d05616abd094c6"