diff --git a/blog/yarn.lock b/blog/yarn.lock
index 0f463d6..7638924 100644
--- a/blog/yarn.lock
+++ b/blog/yarn.lock
@@ -328,10 +328,10 @@ chokidar@^2.0.0, chokidar@^2.0.4:
   optionalDependencies:
     fsevents "^1.2.7"
 
-chownr@^1.1.1:
-  version "1.1.2"
-  resolved "http://r.tnpm.oa.com/chownr/download/chownr-1.1.2.tgz#a18f1e0b269c8a6a5d3c86eb298beb14c3dd7bf6"
-  integrity sha1-oY8eCyacimpdPIbrKYvrFMPde/Y=
+chownr@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/chownr/-/chownr-1.1.4.tgz#6fc9d7b42d32a583596337666e7d08084da2cc6b"
+  integrity sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==
 
 class-utils@^0.3.5:
   version "0.3.6"
@@ -766,12 +766,12 @@ fresh@0.5.2:
   resolved "http://r.tnpm.oa.com/fresh/download/fresh-0.5.2.tgz#3d8cadd90d976569fa835ab1f8e4b23a105605a7"
   integrity sha1-PYyt2Q2XZWn6g1qx+OSyOhBWBac=
 
-fs-minipass@^1.2.5:
-  version "1.2.6"
-  resolved "http://r.tnpm.oa.com/fs-minipass/download/fs-minipass-1.2.6.tgz#2c5cc30ded81282bfe8a0d7c7c1853ddeb102c07"
-  integrity sha1-LFzDDe2BKCv+ig18fBhT3esQLAc=
+fs-minipass@^1.2.7:
+  version "1.2.7"
+  resolved "https://registry.yarnpkg.com/fs-minipass/-/fs-minipass-1.2.7.tgz#ccff8570841e7fe4265693da88936c55aed7f7c7"
+  integrity sha512-GWSSJGFy4e9GUeCcbIkED+bgAoFyj7XF1mV8rma3QW4NIqX9Kyx79N/PF61H5udOV3aY1IaMLs6pGbH71nlCTA==
   dependencies:
-    minipass "^2.2.1"
+    minipass "^2.6.0"
 
 fs.realpath@^1.0.0:
   version "1.0.0"
@@ -1504,35 +1504,35 @@ mime@1.6.0, mime@^1.6.0:
   dependencies:
     brace-expansion "^1.1.7"
 
-minimist@0.0.8:
-  version "0.0.8"
-  resolved "http://r.tnpm.oa.com/minimist/download/minimist-0.0.8.tgz#857fcabfc3397d2625b8228262e86aa7a011b05d"
-  integrity sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0=
-
 minimist@^1.2.0:
   version "1.2.0"
   resolved "http://r.tnpm.oa.com/minimist/download/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
+minimist@^1.2.5:
+  version "1.2.5"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
+  integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
+
 minimist@~0.0.1:
   version "0.0.10"
   resolved "http://r.tnpm.oa.com/minimist/download/minimist-0.0.10.tgz#de3f98543dbf96082be48ad1a0c7cda836301dcf"
   integrity sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8=
 
-minipass@^2.2.1, minipass@^2.3.5:
-  version "2.5.0"
-  resolved "http://r.tnpm.oa.com/minipass/download/minipass-2.5.0.tgz#dddb1d001976978158a05badfcbef4a771612857"
-  integrity sha1-3dsdABl2l4FYoFut/L70p3FhKFc=
+minipass@^2.6.0, minipass@^2.9.0:
+  version "2.9.0"
+  resolved "https://registry.yarnpkg.com/minipass/-/minipass-2.9.0.tgz#e713762e7d3e32fed803115cf93e04bca9fcc9a6"
+  integrity sha512-wxfUjg9WebH+CUDX/CdbRlh5SmfZiy/hpkxaRI16Y9W56Pa75sWgd/rvFilSgrauD9NyFymP/+JFV3KwzIsJeg==
   dependencies:
     safe-buffer "^5.1.2"
     yallist "^3.0.0"
 
-minizlib@^1.2.1:
-  version "1.2.1"
-  resolved "http://r.tnpm.oa.com/minizlib/download/minizlib-1.2.1.tgz#dd27ea6136243c7c880684e8672bb3a45fd9b614"
-  integrity sha1-3SfqYTYkPHyIBoToZyuzpF/ZthQ=
+minizlib@^1.3.3:
+  version "1.3.3"
+  resolved "https://registry.yarnpkg.com/minizlib/-/minizlib-1.3.3.tgz#2290de96818a34c29551c8a8d301216bd65a861d"
+  integrity sha512-6ZYMOEnmVsdCeTJVE0W9ZD+pVnE8h9Hma/iOwwRDsdQoePpoX56/8B6z3P9VNwppJuBKNRuFDRNRqRWexT9G9Q==
   dependencies:
-    minipass "^2.2.1"
+    minipass "^2.9.0"
 
 mixin-deep@^1.2.0:
   version "1.3.2"
@@ -1542,12 +1542,12 @@ mixin-deep@^1.2.0:
     for-in "^1.0.2"
     is-extendable "^1.0.1"
 
-mkdirp@0.5.x, mkdirp@^0.5.0, mkdirp@^0.5.1, mkdirp@~0.5.1, mkdirp@~0.5.x:
-  version "0.5.1"
-  resolved "http://r.tnpm.oa.com/mkdirp/download/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
-  integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
+mkdirp@0.5.x, mkdirp@^0.5.1, mkdirp@^0.5.5, mkdirp@~0.5.1, mkdirp@~0.5.x:
+  version "0.5.5"
+  resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.5.tgz#d91cefd62d1436ca0f41620e251288d420099def"
+  integrity sha512-NKmAlESf6jMGym1++R0Ra7wvhV+wFW63FaSOFPwRahvea0gMUcGUhVeAg/0BC0wiv9ih5NYPB1Wn1UEI1/L+xQ==
   dependencies:
-    minimist "0.0.8"
+    minimist "^1.2.5"
 
 moment-timezone@^0.5.21:
   version "0.5.26"
@@ -1994,10 +1994,10 @@ safe-buffer@5.1.2, safe-buffer@~5.1.0, safe-buffer@~5.1.1:
   resolved "http://r.tnpm.oa.com/safe-buffer/download/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha1-mR7GnSluAxN0fVm9/St0XDX4go0=
 
-safe-buffer@^5.1.2, safe-buffer@~5.2.0:
-  version "5.2.0"
-  resolved "http://r.tnpm.oa.com/safe-buffer/download/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
-  integrity sha1-t02uxJsRSPiMZLaNSbHoFcHy9Rk=
+safe-buffer@^5.1.2, safe-buffer@^5.2.1, safe-buffer@~5.2.0:
+  version "5.2.1"
+  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
+  integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
 safe-json-stringify@~1:
   version "1.2.0"
@@ -2309,17 +2309,17 @@ swig-templates@^2.0.3:
     uglify-js "2.6.0"
 
 tar@^4:
-  version "4.4.10"
-  resolved "http://r.tnpm.oa.com/tar/download/tar-4.4.10.tgz#946b2810b9a5e0b26140cf78bea6b0b0d689eba1"
-  integrity sha1-lGsoELml4LJhQM94vqawsNaJ66E=
-  dependencies:
-    chownr "^1.1.1"
-    fs-minipass "^1.2.5"
-    minipass "^2.3.5"
-    minizlib "^1.2.1"
-    mkdirp "^0.5.0"
-    safe-buffer "^5.1.2"
-    yallist "^3.0.3"
+  version "4.4.19"
+  resolved "https://registry.yarnpkg.com/tar/-/tar-4.4.19.tgz#2e4d7263df26f2b914dee10c825ab132123742f3"
+  integrity sha512-a20gEsvHnWe0ygBY8JbxoM4w3SJdhc7ZAuxkLqh+nvNQN2IOt0B5lLgM490X5Hl8FF0dl0tOf2ewFYAlIFgzVA==
+  dependencies:
+    chownr "^1.1.4"
+    fs-minipass "^1.2.7"
+    minipass "^2.9.0"
+    minizlib "^1.3.3"
+    mkdirp "^0.5.5"
+    safe-buffer "^5.2.1"
+    yallist "^3.1.1"
 
 text-table@^0.2.0:
   version "0.2.0"
@@ -2515,10 +2515,10 @@ yallist@^2.1.2:
   resolved "http://r.tnpm.oa.com/yallist/download/yallist-2.1.2.tgz#1c11f9218f076089a47dd512f93c6699a6a81d52"
   integrity sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI=
 
-yallist@^3.0.0, yallist@^3.0.3:
-  version "3.0.3"
-  resolved "http://r.tnpm.oa.com/yallist/download/yallist-3.0.3.tgz#b4b049e314be545e3ce802236d6cd22cd91c3de9"
-  integrity sha1-tLBJ4xS+VF486AIjbWzSLNkcPek=
+yallist@^3.0.0, yallist@^3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/yallist/-/yallist-3.1.1.tgz#dbb7daf9bfd8bac9ab45ebf602b8cbad0d5d08fd"
+  integrity sha512-a4UGQaWPH59mOXUYnAG2ewncQS4i4F43Tv3JoAM+s2VDAmS9NsK8GpDMLrCHPksFT7h3K6TOoUNn2pb7RoXx4g==
 
 yargs@^3.32.0:
   version "3.32.0"