diff --git a/package.json b/package.json
index 92106c4..88d7161 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,6 @@
   },
   "devDependencies": {
     "jasmine": "2.99.0",
-    "nodemon": "1.18.7"
+    "nodemon": "1.18.9"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index a8d14cc..bd2e873 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1237,20 +1237,20 @@ node-pre-gyp@^0.10.0:
     semver "^5.3.0"
     tar "^4"
 
-nodemon@1.18.7:
-  version "1.18.7"
-  resolved "https://registry.yarnpkg.com/nodemon/-/nodemon-1.18.7.tgz#716b66bf3e89ac4fcfb38a9e61887a03fc82efbb"
+nodemon@1.18.9:
+  version "1.18.9"
+  resolved "https://registry.yarnpkg.com/nodemon/-/nodemon-1.18.9.tgz#90b467efd3b3c81b9453380aeb2a2cba535d0ead"
   dependencies:
     chokidar "^2.0.4"
     debug "^3.1.0"
     ignore-by-default "^1.0.1"
     minimatch "^3.0.4"
-    pstree.remy "^1.1.2"
+    pstree.remy "^1.1.6"
     semver "^5.5.0"
     supports-color "^5.2.0"
     touch "^3.1.0"
     undefsafe "^2.0.2"
-    update-notifier "^2.3.0"
+    update-notifier "^2.5.0"
 
 nopt@^4.0.1:
   version "4.0.1"
@@ -1428,9 +1428,9 @@ pseudomap@^1.0.2:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/pseudomap/-/pseudomap-1.0.2.tgz#f052a28da70e618917ef0a8ac34c1ae5a68286b3"
 
-pstree.remy@^1.1.2:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/pstree.remy/-/pstree.remy-1.1.2.tgz#4448bbeb4b2af1fed242afc8dc7416a6f504951a"
+pstree.remy@^1.1.6:
+  version "1.1.6"
+  resolved "https://registry.yarnpkg.com/pstree.remy/-/pstree.remy-1.1.6.tgz#73a55aad9e2d95814927131fbf4dc1b62d259f47"
 
 punycode@^1.4.1:
   version "1.4.1"
@@ -1913,7 +1913,7 @@ upath@^1.0.5:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/upath/-/upath-1.1.0.tgz#35256597e46a581db4793d0ce47fa9aebfc9fabd"
 
-update-notifier@^2.3.0:
+update-notifier@^2.5.0:
   version "2.5.0"
   resolved "https://registry.yarnpkg.com/update-notifier/-/update-notifier-2.5.0.tgz#d0744593e13f161e406acb1d9408b72cad08aff6"
   dependencies: