diff --git a/CHANGELOG.md b/CHANGELOG.md
index 60e9a7a..d05b599 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,15 @@
+## 20.14.0 (April 05, 2020)
+  - add several mp3 for old files
+  - add readings for my previous posts
+  - add flutter doc and generated mp3
+  - add new post and gen tts script
+  - add posts
+  - add new post
+  - add a new post
+  - add new posts
+  - publish the conceal post.
+  - udpate makefile
+
 ## 19.52.0 (December 29, 2019)
   - revise again
   - revise 2019 final words
diff --git a/version b/version
index 1272e0e..48b14e6 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-19.52.0
+20.14.0
diff --git a/yarn.lock b/yarn.lock
index 28b9334..4c5fc83 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -11,9 +11,9 @@
     lodash.deburr "^4.1.0"
 
 "@tyrchen/xftts@^0.1.0":
-  version "0.1.0"
-  resolved "https://registry.yarnpkg.com/@tyrchen/xftts/-/xftts-0.1.0.tgz#c5e0118ba3c42c58bc28e824c41e394c8f1fb90c"
-  integrity sha512-Kq12IClqem/wiLQrCPndWQ2PMxHgeE8hhRajitLTYS//GuSl8tZ0E8BuGw4K70g6u8Ch7Y1v8+usMGcjbJVFKA==
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/@tyrchen/xftts/-/xftts-0.1.1.tgz#dac80094e2118acfc50253243d116fbcb522e15f"
+  integrity sha512-DLd2+TR1sIGRyNf1O9j2WOAS7HPOMvqCGC1YncpW0yvqP1wZNZt4mTnsuTj9gCW/OvgHnfzoUAp01rWzAdz8jg==
   dependencies:
     crypto-js "^4.0.0"
     websocket "^1.0.31"
@@ -170,9 +170,9 @@ fluent-ffmpeg@^2.0.0:
     which "^1.1.1"
 
 front-matter@^3.0.2:
-  version "3.0.2"
-  resolved "https://registry.yarnpkg.com/front-matter/-/front-matter-3.0.2.tgz#2401cd05fcf22bd0de48a104ffb4efb1ff5c8465"
-  integrity sha512-iBGZaWyzqgsrPGsqrXZP6N4hp5FzSKDi18nfAoYpgz3qK5sAwFv/ojmn3VS60SOgLvq6CtojNqy0y6ZNz05IzQ==
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/front-matter/-/front-matter-3.1.0.tgz#a0b758c3c6c39ce43e107dd0909a57d42964c2de"
+  integrity sha512-RFEK8N6waWTdwBZOPNEtvwMjZ/hUfpwXkYUYkmmOhQGdhSulXhWrFwiUhdhkduLDiIwbROl/faF1X/PC/GGRMw==
   dependencies:
     js-yaml "^3.13.1"
 
@@ -348,9 +348,9 @@ next-tick@~1.0.0:
   integrity sha1-yobR/ogoFpsBICCOPchCS524NCw=
 
 p-limit@^2.0.0:
-  version "2.2.1"
-  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.2.1.tgz#aa07a788cc3151c939b5131f63570f0dd2009537"
-  integrity sha512-85Tk+90UCVWvbDavCLKPOLC9vvY8OwEX/RtKF+/1OADJMVlFfEHOiMTPVyxg7mk/dKa+ipdHm0OUkTvCpMTuwg==
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/p-limit/-/p-limit-2.3.0.tgz#3dd33c647a214fdfffd835933eb086da0dc21db1"
+  integrity sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==
   dependencies:
     p-try "^2.0.0"
 
@@ -471,18 +471,18 @@ yaeti@^0.0.6:
   resolved "https://registry.yarnpkg.com/yaeti/-/yaeti-0.0.6.tgz#f26f484d72684cf42bedfb76970aa1608fbf9577"
   integrity sha1-8m9ITXJoTPQr7ft2lwqhYI+/lXc=
 
-yargs-parser@^15.0.0:
-  version "15.0.0"
-  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-15.0.0.tgz#cdd7a97490ec836195f59f3f4dbe5ea9e8f75f08"
-  integrity sha512-xLTUnCMc4JhxrPEPUYD5IBR1mWCK/aT6+RJ/K29JY2y1vD+FhtgKK0AXRWvI262q3QSffAQuTouFIKUuHX89wQ==
+yargs-parser@^15.0.1:
+  version "15.0.1"
+  resolved "https://registry.yarnpkg.com/yargs-parser/-/yargs-parser-15.0.1.tgz#54786af40b820dcb2fb8025b11b4d659d76323b3"
+  integrity sha512-0OAMV2mAZQrs3FkNpDQcBk1x5HXb8X4twADss4S0Iuk+2dGnLOE/fRHrsYm542GduMveyA77OF4wrNJuanRCWw==
   dependencies:
     camelcase "^5.0.0"
     decamelize "^1.2.0"
 
 yargs@^14.2.0:
-  version "14.2.0"
-  resolved "https://registry.yarnpkg.com/yargs/-/yargs-14.2.0.tgz#f116a9242c4ed8668790b40759b4906c276e76c3"
-  integrity sha512-/is78VKbKs70bVZH7w4YaZea6xcJWOAwkhbR0CFuZBmYtfTYF0xjGJF43AYd8g2Uii1yJwmS5GR2vBmrc32sbg==
+  version "14.2.3"
+  resolved "https://registry.yarnpkg.com/yargs/-/yargs-14.2.3.tgz#1a1c3edced1afb2a2fea33604bc6d1d8d688a414"
+  integrity sha512-ZbotRWhF+lkjijC/VhmOT9wSgyBQ7+zr13+YLkhfsSiTriYsMzkTUFP18pFhWwBeMa5gUc1MzbhrO6/VB7c9Xg==
   dependencies:
     cliui "^5.0.0"
     decamelize "^1.2.0"
@@ -494,4 +494,4 @@ yargs@^14.2.0:
     string-width "^3.0.0"
     which-module "^2.0.0"
     y18n "^4.0.0"
-    yargs-parser "^15.0.0"
+    yargs-parser "^15.0.1"