diff --git a/package.json b/package.json
index 558e2c2..f461c9a 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,6 @@
   "dependencies": {
     "@orgmanager/node-orgmanager-api": "1.1.2",
     "debug": "4.3.2",
-    "telegraf": "4.4.2"
+    "telegraf": "4.15.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index 30d1689..4ae9843 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -10,6 +10,11 @@
     request "2.83.0"
     request-promise-native "1.0.5"
 
+"@telegraf/types@^6.9.1":
+  version "6.9.1"
+  resolved "https://registry.yarnpkg.com/@telegraf/types/-/types-6.9.1.tgz#ee2d335164f582db55337d77cc440c1faeadd510"
+  integrity sha512-bzqwhicZq401T0e09tu8b1KvGfJObPmzKU/iKCT5V466AsAZZWQrBYQ5edbmD1VZuHLEwopoOVY5wPP4HaLtug==
+
 abort-controller@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/abort-controller/-/abort-controller-3.0.0.tgz#eaf54d53b62bae4138e809ca225c8439a6efb392"
@@ -129,13 +134,20 @@ dashdash@^1.12.0:
   dependencies:
     assert-plus "^1.0.0"
 
-debug@4.3.2, debug@^4.3.1:
+debug@4.3.2:
   version "4.3.2"
   resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.2.tgz#f0a49c18ac8779e31d4a0c6029dfb76873c7428b"
   integrity sha512-mOp8wKcvj7XxC78zLgw/ZA+6TSgkoE2C/ienthhRD298T7UNwAg9diBpLRxC0mOezLl4B0xV7M0cCO6P/O0Xhw==
   dependencies:
     ms "2.1.2"
 
+debug@^4.3.4:
+  version "4.3.4"
+  resolved "https://registry.yarnpkg.com/debug/-/debug-4.3.4.tgz#1319f6579357f2338d3337d2cdd4914bb5dcc865"
+  integrity sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==
+  dependencies:
+    ms "2.1.2"
+
 delayed-stream@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/delayed-stream/-/delayed-stream-1.0.0.tgz#df3ae199acadfb7d440aaae0b29e2272b24ec619"
@@ -294,25 +306,22 @@ mime-types@^2.1.12, mime-types@~2.1.17:
   dependencies:
     mime-db "~1.37.0"
 
-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==
-
-module-alias@^2.2.2:
-  version "2.2.2"
-  resolved "https://registry.yarnpkg.com/module-alias/-/module-alias-2.2.2.tgz#151cdcecc24e25739ff0aa6e51e1c5716974c0e0"
-  integrity sha512-A/78XjoX2EmNvppVWEhM2oGk3x4lLxnkEA4jTbaK97QKSDjkIoOsKQlfylt/d3kKKi596Qy3NP5XrXJ6fZIC9Q==
+mri@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/mri/-/mri-1.2.0.tgz#6721480fec2a11a4889861115a48b6cbe7cc8f0b"
+  integrity sha512-tzzskb3bG8LvYGFF/mDTpq3jpI6Q9wc3LEmBaghu+DdCssd1FakN7Bc0hVNmEyGq1bq3RgfkCb3cmQLpNPOroA==
 
 ms@2.1.2:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.2.tgz#d09d1f357b443f493382a8eb3ccd183872ae6009"
   integrity sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==
 
-node-fetch@^2.6.1:
-  version "2.6.1"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.1.tgz#045bd323631f76ed2e2b55573394416b639a0052"
-  integrity sha512-V4aYg89jEoVRxRb2fJdAg8FHvI7cEyYdVAh94HH0UIK8oJxUfkjlDQN9RbMx+bEjP7+ggMiFRprSti032Oipxw==
+node-fetch@^2.6.8:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.7.0.tgz#d0f0fa6e3e2dc1d27efcd8ad99d550bda94d187d"
+  integrity sha512-c4FRfUm/dbcWZ7U+1Wq0AwCyFL+3nt2bEw05wfxSz+DWpWsitgmSgYmy2dQdWyKC1694ELPqMs/YzUSNozLt8A==
+  dependencies:
+    whatwg-url "^5.0.0"
 
 oauth-sign@~0.8.2:
   version "0.8.2"
@@ -447,20 +456,19 @@ stringstream@~0.0.5:
   resolved "https://registry.yarnpkg.com/stringstream/-/stringstream-0.0.6.tgz#7880225b0d4ad10e30927d167a1d6f2fd3b33a72"
   integrity sha512-87GEBAkegbBcweToUrdzf3eLhWNg06FJTebl4BVJz/JgWy8CvEr9dRtX5qWphiynMSQlxxi+QqN0z5T32SLlhA==
 
-telegraf@4.4.2:
-  version "4.4.2"
-  resolved "https://registry.yarnpkg.com/telegraf/-/telegraf-4.4.2.tgz#dd1b99a50593de303c8f47bbe98201a93a125f31"
-  integrity sha512-OGt9w1LbxYUOsRk3htAavBnL9hqWycmJNiOmS74oARzxKFnYS/MdwW8b5CX9VLCJt537AXkm8/eBNiEYD8E7lQ==
+telegraf@4.15.1:
+  version "4.15.1"
+  resolved "https://registry.yarnpkg.com/telegraf/-/telegraf-4.15.1.tgz#2b72a7a8a0f83aa660c0f855d2c5879eda1a10cd"
+  integrity sha512-XbQUPvi/YqqSSD8EHswfoaq5rq3i51hZp26J49lZRGVA4msySgPSUSCAZwIOzCZTjPZyxsBxd4DM4bHLHF/oUw==
   dependencies:
+    "@telegraf/types" "^6.9.1"
     abort-controller "^3.0.0"
-    debug "^4.3.1"
-    minimist "^1.2.5"
-    module-alias "^2.2.2"
-    node-fetch "^2.6.1"
+    debug "^4.3.4"
+    mri "^1.2.0"
+    node-fetch "^2.6.8"
     p-timeout "^4.1.0"
     safe-compare "^1.1.4"
     sandwich-stream "^2.0.2"
-    typegram "^3.4.2"
 
 tough-cookie@>=2.3.3:
   version "2.5.0"
@@ -477,6 +485,11 @@ tough-cookie@~2.3.3:
   dependencies:
     punycode "^1.4.1"
 
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+  integrity sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==
+
 tunnel-agent@^0.6.0:
   version "0.6.0"
   resolved "https://registry.yarnpkg.com/tunnel-agent/-/tunnel-agent-0.6.0.tgz#27a5dea06b36b04a0a9966774b290868f0fc40fd"
@@ -489,11 +502,6 @@ tweetnacl@^0.14.3, tweetnacl@~0.14.0:
   resolved "https://registry.yarnpkg.com/tweetnacl/-/tweetnacl-0.14.5.tgz#5ae68177f192d4456269d108afa93ff8743f4f64"
   integrity sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=
 
-typegram@^3.4.2:
-  version "3.4.2"
-  resolved "https://registry.yarnpkg.com/typegram/-/typegram-3.4.2.tgz#b2c11e745c9b7aafb6f76eb973f61958431ea392"
-  integrity sha512-Z+FaPrD+oyzvchLZHmfyz55MuPhJ51tYm6i+gbeZ0W8Yr4LLWQfI0mBlR2v08PzjHuRx26bmZBEM30jSrGbfbg==
-
 uuid@^3.1.0:
   version "3.3.2"
   resolved "https://registry.yarnpkg.com/uuid/-/uuid-3.3.2.tgz#1b4af4955eb3077c501c23872fc6513811587131"
@@ -507,3 +515,16 @@ verror@1.10.0:
     assert-plus "^1.0.0"
     core-util-is "1.0.2"
     extsprintf "^1.2.0"
+
+webidl-conversions@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/webidl-conversions/-/webidl-conversions-3.0.1.tgz#24534275e2a7bc6be7bc86611cc16ae0a5654871"
+  integrity sha512-2JAn3z8AR6rjK8Sm8orRC0h/bcl/DqL7tRPdGZ4I1CjdF+EaMLmYxBHyXuKL849eucPFhvBoxMsflfOb8kxaeQ==
+
+whatwg-url@^5.0.0:
+  version "5.0.0"
+  resolved "https://registry.yarnpkg.com/whatwg-url/-/whatwg-url-5.0.0.tgz#966454e8765462e37644d3626f6742ce8b70965d"
+  integrity sha512-saE57nupxk6v3HY35+jzBwYa0rKSy0XR8JSxZPwgLr7ys0IBzhGviA1/TUGJLmSVqs8pb9AnvICXEuOHLprYTw==
+  dependencies:
+    tr46 "~0.0.3"
+    webidl-conversions "^3.0.0"