diff --git a/package.json b/package.json
index 260ae88..c008bd4 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "date-fns": "^1.29.0",
     "debug": "^3.1.0",
     "isomorphic-fetch": "^2.2.1",
-    "jsolines": "^1.0.2",
+    "jsolines": "^2.1.0",
     "leaflet": "^1.3.4",
     "lodash": "^4.17.10",
     "mastarm": "^4.3.1",
diff --git a/src/actions/network.js b/src/actions/network.js
index 7af8ca8..652e8f6 100644
--- a/src/actions/network.js
+++ b/src/actions/network.js
@@ -235,7 +235,7 @@ const fetchTimesAndPathsForNetworkAtIndex = (network, originPoint, index) =>
       const travelTimeSurface = parseTimesData(timesResponse.value)
       const {paths, pathsPerTarget, targets} = parsePathsData(pathsResponse.value)
 
-      if (process.env.NODE_ENV === 'development') {
+      if (process.env.NODE_ENV === 'test') {
         warnForInvalidPaths(paths, network.transitive)
       }
 
diff --git a/yarn.lock b/yarn.lock
index 36df808..9af9414 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -769,19 +769,22 @@
     into-stream "^3.1.0"
     lodash "^4.17.4"
 
-"@turf/helpers@^3.10.3":
-  version "3.13.0"
-  resolved "https://registry.yarnpkg.com/@turf/helpers/-/helpers-3.13.0.tgz#d06078a1464cf56cdb7ea624ea1e13a71b88b806"
-
-"@turf/inside@^3.10.3":
-  version "3.14.0"
-  resolved "https://registry.yarnpkg.com/@turf/inside/-/inside-3.14.0.tgz#d6b6af55882cbdb8f9a558dca98689c67bd3c590"
+"@turf/boolean-point-in-polygon@^6.0.1":
+  version "6.0.1"
+  resolved "https://registry.yarnpkg.com/@turf/boolean-point-in-polygon/-/boolean-point-in-polygon-6.0.1.tgz#5836677afd77d2ee391af0056a0c29b660edfa32"
   dependencies:
-    "@turf/invariant" "^3.13.0"
+    "@turf/helpers" "6.x"
+    "@turf/invariant" "6.x"
+
+"@turf/helpers@6.x", "@turf/helpers@^6.1.4":
+  version "6.1.4"
+  resolved "https://registry.yarnpkg.com/@turf/helpers/-/helpers-6.1.4.tgz#d6fd7ebe6782dd9c87dca5559bda5c48ae4c3836"
 
-"@turf/invariant@^3.13.0":
-  version "3.13.0"
-  resolved "https://registry.yarnpkg.com/@turf/invariant/-/invariant-3.13.0.tgz#89243308cd563206e81e5c6162e0d22f61822f90"
+"@turf/invariant@6.x":
+  version "6.1.2"
+  resolved "https://registry.yarnpkg.com/@turf/invariant/-/invariant-6.1.2.tgz#6013ed6219f9ac2edada9b31e1dfa5918eb0a2f7"
+  dependencies:
+    "@turf/helpers" "6.x"
 
 JSONStream@^1.0.3, JSONStream@^1.0.4, JSONStream@^1.3.4:
   version "1.3.4"
@@ -2719,7 +2722,7 @@ debounce@^1.0.0:
   version "1.2.0"
   resolved "https://registry.yarnpkg.com/debounce/-/debounce-1.2.0.tgz#44a540abc0ea9943018dc0eaa95cce87f65cd131"
 
-debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.1, debug@^2.6.8, debug@^2.6.9:
+debug@2.6.9, debug@^2.1.2, debug@^2.2.0, debug@^2.3.3, debug@^2.6.8, debug@^2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
   dependencies:
@@ -5400,13 +5403,12 @@ jsesc@~0.5.0:
   version "0.5.0"
   resolved "https://registry.yarnpkg.com/jsesc/-/jsesc-0.5.0.tgz#e7dee66e35d6fc16f710fe91d5cf69f70f08911d"
 
-jsolines@^1.0.2:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/jsolines/-/jsolines-1.0.2.tgz#5332f7d77f5640054471a134317ae85346118c34"
+jsolines@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/jsolines/-/jsolines-2.1.0.tgz#047dc4889c18ed44d946fe12cd6e5bd20bde7b6b"
   dependencies:
-    "@turf/helpers" "^3.10.3"
-    "@turf/inside" "^3.10.3"
-    debug "^2.6.1"
+    "@turf/boolean-point-in-polygon" "^6.0.1"
+    "@turf/helpers" "^6.1.4"
 
 json-parse-better-errors@^1.0.0, json-parse-better-errors@^1.0.1, json-parse-better-errors@^1.0.2:
   version "1.0.2"