diff --git a/package.json b/package.json
index 72eed38..f126333 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
 		"nodejs-i18n": "2.4.0",
 		"pg": "^8.3.3",
 		"pg-native": "^3.0.0",
-		"telegraf": "^3.38.0",
+		"telegraf": "^4.8.5",
 		"telegraf-start-parts": "^1.0.0"
 	},
 	"devDependencies": {
diff --git a/yarn.lock b/yarn.lock
index f86ca60..bb8c1a2 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -258,6 +258,13 @@ abbrev@1:
   resolved "https://registry.yarnpkg.com/abbrev/-/abbrev-1.1.1.tgz#f8f2c887ad10bf67f634f005b6987fed3179aac8"
   integrity sha512-nne9/IiQ/hzIhY6pdDnbBtz7DjPTKrY00P/zvPSm5pOFkl6xuGrGnXn/VtTNNfNtAfZ9/1RtehkszU9qcTii0Q==
 
+abort-controller@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/abort-controller/-/abort-controller-3.0.0.tgz#eaf54d53b62bae4138e809ca225c8439a6efb392"
+  integrity sha512-h8lQ8tacZYnR3vNQTgibj+tODHI5/+l06Au2Pcriv/Gmet0eaj4TwWH41sO9wnHDiQsEj19q0drzdWdeAHtweg==
+  dependencies:
+    event-target-shim "^5.0.0"
+
 acorn-jsx@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/acorn-jsx/-/acorn-jsx-5.2.0.tgz#4c66069173d6fdd68ed85239fc256226182b2ebe"
@@ -616,6 +623,24 @@ buf-compare@^1.0.0:
   resolved "https://registry.yarnpkg.com/buf-compare/-/buf-compare-1.0.1.tgz#fef28da8b8113a0a0db4430b0b6467b69730b34a"
   integrity sha1-/vKNqLgROgoNtEMLC2Rntpcws0o=
 
+buffer-alloc-unsafe@^1.1.0:
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc-unsafe/-/buffer-alloc-unsafe-1.1.0.tgz#bd7dc26ae2972d0eda253be061dba992349c19f0"
+  integrity sha512-TEM2iMIEQdJ2yjPJoSIsldnleVaAk1oW3DBVUykyOLsEsFmEc9kn+SFFPz+gl54KQNxlDnAwCXosOS9Okx2xAg==
+
+buffer-alloc@^1.2.0:
+  version "1.2.0"
+  resolved "https://registry.yarnpkg.com/buffer-alloc/-/buffer-alloc-1.2.0.tgz#890dd90d923a873e08e10e5fd51a57e5b7cce0ec"
+  integrity sha512-CFsHQgjtW1UChdXgbyJGtnm+O/uLQeZdtbDo8mfUgYXCHSM1wgrVxXm6bSyrUuErEb+4sYVGCzASBRot7zyrow==
+  dependencies:
+    buffer-alloc-unsafe "^1.1.0"
+    buffer-fill "^1.0.0"
+
+buffer-fill@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/buffer-fill/-/buffer-fill-1.0.0.tgz#f8f78b76789888ef39f205cd637f68e702122b2c"
+  integrity sha512-T7zexNBwiiaCOGDg9xNX9PBmjrubblRkENuptryuI64URkXDFum9il/JGL8Lm8wYfAXpredVXXZz7eMHilimiQ==
+
 buffer-writer@2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/buffer-writer/-/buffer-writer-2.0.0.tgz#ce7eb81a38f7829db09c873f2fbb792c0c98ec04"
@@ -1001,6 +1026,13 @@ debug@^4.2.0:
   dependencies:
     ms "2.1.2"
 
+debug@^4.3.3:
+  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"
+
 decamelize-keys@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/decamelize-keys/-/decamelize-keys-1.1.0.tgz#d171a87933252807eb3cb61dc1c1445d078df2d9"
@@ -1584,6 +1616,11 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.2.tgz#0abf4f1caa5bcb1f7a9d8acc6dea4faaa04bac9b"
   integrity sha1-Cr9PHKpbyx96nYrMbepPqqBLrJs=
 
+event-target-shim@^5.0.0:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/event-target-shim/-/event-target-shim-5.0.1.tgz#5d4d3ebdf9583d63a5333ce2deb7480ab2b05789"
+  integrity sha512-i/2XbnSz/uxRCU6+NdVJgKWDTM427+MqYbkQzD321DuCQJUqOuJKIA0IM2+W2xtYHdKOmZ4dR6fExsd4SXL+WQ==
+
 events@^3.0.0:
   version "3.1.0"
   resolved "https://registry.yarnpkg.com/events/-/events-3.1.0.tgz#84279af1b34cb75aa88bf5ff291f6d0bd9b31a59"
@@ -2812,6 +2849,11 @@ minimist@^1.2.5:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.5.tgz#67d66014b66a6a8aaa0c083c5fd58df4e4e97602"
   integrity sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw==
 
+minimist@^1.2.6:
+  version "1.2.6"
+  resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.6.tgz#8637a5b759ea0d6e98702cfb3a9283323c93af44"
+  integrity sha512-Jsjnk4bw3YJqYzbdyBiNsPWHPfO++UGG749Cxs6peCu5Xg4nrena6OVxOYxrQTqww0Jmwt+Ref8rggumkTLz9Q==
+
 mixin-deep@^1.2.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/mixin-deep/-/mixin-deep-1.3.2.tgz#1120b43dc359a785dce65b55b82e257ccf479566"
@@ -2889,9 +2931,12 @@ natural-compare@^1.4.0:
   resolved "https://registry.yarnpkg.com/natural-compare/-/natural-compare-1.4.0.tgz#4abebfeed7541f2c27acfb29bdbbd15c8d5ba4f7"
   integrity sha1-Sr6/7tdUHywnrPspvbvRXI1bpPc=
 
-node-fetch@^2.2.0:
-  version "2.2.0"
-  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.2.0.tgz#4ee79bde909262f9775f731e3656d0db55ced5b5"
+node-fetch@^2.6.7:
+  version "2.6.7"
+  resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-2.6.7.tgz#24de9fba827e3b4ae44dc8b20256a379160052ad"
+  integrity sha512-ZjMPFEfVx5j+y2yF35Kzx5sF7kDzxuDj6ziH4FFbOp87zKDZNx8yExJIb05OGF4Nlt9IHFIMBkRl41VdvcNdbQ==
+  dependencies:
+    whatwg-url "^5.0.0"
 
 "node-libs-browser@^1.0.0 || ^2.0.0":
   version "2.2.1"
@@ -3117,6 +3162,11 @@ p-reduce@^2.1.0:
   resolved "https://registry.yarnpkg.com/p-reduce/-/p-reduce-2.1.0.tgz#09408da49507c6c274faa31f28df334bc712b64a"
   integrity sha512-2USApvnsutq8uoxZBGbbWM0JIYLiEMJ9RlaN7fAzVNb9OZN0SHjjTTfIcb667XynS5Y1VhwDJVDa72TnPzAYWw==
 
+p-timeout@^4.1.0:
+  version "4.1.0"
+  resolved "https://registry.yarnpkg.com/p-timeout/-/p-timeout-4.1.0.tgz#788253c0452ab0ffecf18a62dff94ff1bd09ca0a"
+  integrity sha512-+/wmHtzJuWii1sXn3HCuH/FTwGhrp4tmJTxSKJbfS+vkipci6osxXM5mY0jUiRzWKMTgUT8l7HFbeSwZAynqHw==
+
 p-try@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/p-try/-/p-try-1.0.0.tgz#cbc79cdbaf8fd4228e13f621f2b1a237c1b207b3"
@@ -3760,6 +3810,13 @@ safe-buffer@^5.2.0:
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.1.tgz#1eaf9fa9bdb1fdd4ec75f58f9cdb4e6b7827eec6"
   integrity sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==
 
+safe-compare@^1.1.4:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/safe-compare/-/safe-compare-1.1.4.tgz#5e0128538a82820e2e9250cd78e45da6786ba593"
+  integrity sha512-b9wZ986HHCo/HbKrRpBJb2kqXMK9CEWIE1egeEvZsYn69ay3kdfl9nG3RyOcR+jInTDf7a86WQ1d4VJX7goSSQ==
+  dependencies:
+    buffer-alloc "^1.2.0"
+
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"
@@ -3778,9 +3835,10 @@ safe-regex@^2.1.1:
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
 
-sandwich-stream@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/sandwich-stream/-/sandwich-stream-2.0.1.tgz#71606fd182ec07ac41ecaf963f82eb6718aaf765"
+sandwich-stream@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/sandwich-stream/-/sandwich-stream-2.0.2.tgz#6d1feb6cf7e9fe9fadb41513459a72c2e84000fa"
+  integrity sha512-jLYV0DORrzY3xaz/S9ydJL6Iz7essZeAfnAavsJ+zsJGZ1MOnsS52yRjU3uF3pJa/lla7+wisp//fxOwOH8SKQ==
 
 semver-diff@^3.1.1:
   version "3.1.1"
@@ -4148,21 +4206,20 @@ telegraf-start-parts@^1.0.0:
   resolved "https://registry.yarnpkg.com/telegraf-start-parts/-/telegraf-start-parts-1.0.0.tgz#0412f5ea8f9e0bce7cc50dc7063f971c7140259f"
   integrity sha512-NSTV4t5HUwoylPmw59FrXrZk1RkDUyDiVI4/cwccEysY0rBkt3WxTqfl7aNE02bZQfQS0tsjw4NU958C5RvEcw==
 
-telegraf@^3.38.0:
-  version "3.38.0"
-  resolved "https://registry.yarnpkg.com/telegraf/-/telegraf-3.38.0.tgz#745b447547a8e6cdb626055e4d616058aaae0759"
-  integrity sha512-va4VlrKWp64JrowFoZX/NPzzA6q38kvaIukVXOWFO1V+jR1G8+hCfgJy4TX8Z3rwLJzwaBEet1QhikHDRZWl3A==
+telegraf@^4.8.5:
+  version "4.8.5"
+  resolved "https://registry.yarnpkg.com/telegraf/-/telegraf-4.8.5.tgz#0df238ae01e44f98ce28785f5d465127d712151b"
+  integrity sha512-BTnXBvQ2sRnPCuDvMCvZhMfanJxycWNmAEd+23yBliKXddqt/fFWkj/2OQMD/L3YPD1c1elK5F4WEkJUW3khQQ==
   dependencies:
-    debug "^4.0.1"
-    minimist "^1.2.0"
+    abort-controller "^3.0.0"
+    debug "^4.3.3"
+    minimist "^1.2.6"
     module-alias "^2.2.2"
-    node-fetch "^2.2.0"
-    sandwich-stream "^2.0.1"
-    telegram-typings "^3.6.0"
-
-telegram-typings@^3.6.0:
-  version "3.6.1"
-  resolved "https://registry.yarnpkg.com/telegram-typings/-/telegram-typings-3.6.1.tgz#1288d547f8694b61f1c01c2993e295f3114d9e25"
+    node-fetch "^2.6.7"
+    p-timeout "^4.1.0"
+    safe-compare "^1.1.4"
+    sandwich-stream "^2.0.2"
+    typegram "^3.9.0"
 
 temp-dir@^2.0.0:
   version "2.0.0"
@@ -4262,6 +4319,11 @@ touch@^3.1.0:
   dependencies:
     nopt "~1.0.10"
 
+tr46@~0.0.3:
+  version "0.0.3"
+  resolved "https://registry.yarnpkg.com/tr46/-/tr46-0.0.3.tgz#8184fd347dac9cdc185992f3a6622e14b9d9ab6a"
+  integrity sha512-N3WMsuqV66lT30CrXNbEjx4GEwlow3v6rr4mCcv6prnfwhS01rkgyFdjPNBYd9br7LpXV1+Emh01fHnq2Gdgrw==
+
 trim-newlines@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/trim-newlines/-/trim-newlines-3.0.0.tgz#79726304a6a898aa8373427298d54c2ee8b1cb30"
@@ -4333,6 +4395,11 @@ typedarray-to-buffer@^3.1.5:
   dependencies:
     is-typedarray "^1.0.0"
 
+typegram@^3.9.0:
+  version "3.9.2"
+  resolved "https://registry.yarnpkg.com/typegram/-/typegram-3.9.2.tgz#8e32a621a9f39bc48f093ec011105a66aa743eaf"
+  integrity sha512-lbMhaP0jHsEbz8EJf2s4/hkKLtt2/9THTNatXa2mJCKHZBeJzGO1jrwueQBnXsSgA5pPHLwcPslTnsKXGo/GIQ==
+
 typescript@^3.9.7:
   version "3.9.7"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.9.7.tgz#98d600a5ebdc38f40cb277522f12dc800e9e25fa"
@@ -4485,6 +4552,19 @@ vm-browserify@^1.0.1:
   resolved "https://registry.yarnpkg.com/vm-browserify/-/vm-browserify-1.1.2.tgz#78641c488b8e6ca91a75f511e7a3b32a86e5dda0"
   integrity sha512-2ham8XPWTONajOR0ohOKOHXkm3+gaBmGut3SRuu75xLd/RRaY6vqgh8NBYYk7+RW3u5AtzPQZG8F10LHkl0lAQ==
 
+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"
+
 which@^2.0.1:
   version "2.0.2"
   resolved "https://registry.yarnpkg.com/which/-/which-2.0.2.tgz#7c6a8dd0a636a0327e10b59c9286eee93f3f51b1"