diff --git a/yarn.lock b/yarn.lock
index 216ce9a..9774c2c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -883,10 +883,10 @@ base@^0.11.1:
     pascalcase "^0.1.1"
 
 basic-auth@~2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-2.0.0.tgz#015db3f353e02e56377755f962742e8981e7bbba"
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/basic-auth/-/basic-auth-2.0.1.tgz#b998279bf47ce38344b4f3cf916d4679bbf51e3a"
   dependencies:
-    safe-buffer "5.1.1"
+    safe-buffer "5.1.2"
 
 bcrypt-pbkdf@^1.0.0:
   version "1.0.1"
@@ -1680,7 +1680,7 @@ esutils@^2.0.2:
 
 event-stream@~3.3.0:
   version "3.3.4"
-  resolved "http://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
+  resolved "https://registry.npmjs.org/event-stream/-/event-stream-3.3.4.tgz#4ab4c9a0f5a54db9338b4c34d86bfce8f4b35571"
   dependencies:
     duplexer "~0.1.1"
     from "~0"
@@ -3628,12 +3628,12 @@ moment-timezone@^0.5.17:
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.22.1.tgz#529a2e9bf973f259c9643d237fda84de3a26e8ad"
 
 morgan@^1.6.1:
-  version "1.9.0"
-  resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.9.0.tgz#d01fa6c65859b76fcf31b3cb53a3821a311d8051"
+  version "1.9.1"
+  resolved "https://registry.yarnpkg.com/morgan/-/morgan-1.9.1.tgz#0a8d16734a1d9afbc824b99df87e738e58e2da59"
   dependencies:
     basic-auth "~2.0.0"
     debug "2.6.9"
-    depd "~1.1.1"
+    depd "~1.1.2"
     on-finished "~2.3.0"
     on-headers "~1.0.1"
 
@@ -3880,8 +3880,8 @@ on-finished@^2.1.0, on-finished@~2.3.0:
     ee-first "1.1.1"
 
 on-headers@~1.0.1:
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.1.tgz#928f5d0f470d49342651ea6794b0857c100693f7"
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/on-headers/-/on-headers-1.0.2.tgz#772b0ae6aaa525c399e489adfad90c403eb3c28f"
 
 once@^1.3.0, once@^1.4.0:
   version "1.4.0"
@@ -4511,7 +4511,11 @@ rx@2.3.24:
   version "2.3.24"
   resolved "https://registry.yarnpkg.com/rx/-/rx-2.3.24.tgz#14f950a4217d7e35daa71bbcbe58eff68ea4b2b7"
 
-safe-buffer@5.1.1, safe-buffer@^5.0.1, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
+safe-buffer@5.1.2:
+  version "5.1.2"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
+
+safe-buffer@^5.0.1, safe-buffer@^5.1.1, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   version "5.1.1"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.1.tgz#893312af69b2123def71f57889001671eeb2c853"