diff --git a/dev-packages/application-manager/package.json b/dev-packages/application-manager/package.json
index cfc71118057de..0062a27e284ce 100644
--- a/dev-packages/application-manager/package.json
+++ b/dev-packages/application-manager/package.json
@@ -36,7 +36,6 @@
     "@theia/compression-webpack-plugin": "^3.0.0",
     "@types/fs-extra": "^4.0.2",
     "babel-loader": "^8.0.6",
-    "bunyan": "^1.8.10",
     "circular-dependency-plugin": "^5.0.0",
     "copy-webpack-plugin": "^4.5.0",
     "css-loader": "^0.28.1",
diff --git a/packages/core/package.json b/packages/core/package.json
index 37e9fb5acc091..b2dcd56248550 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -10,7 +10,6 @@
     "@primer/octicons-react": "^9.0.0",
     "@theia/application-package": "^0.12.0",
     "@types/body-parser": "^1.16.4",
-    "@types/bunyan": "^1.8.0",
     "@types/express": "^4.16.0",
     "@types/fs-extra": "^4.0.2",
     "@types/lodash.debounce": "4.0.3",
diff --git a/yarn.lock b/yarn.lock
index 7a06232bbff35..65f1bd2c7e8de 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -874,13 +874,6 @@
     "@types/connect" "*"
     "@types/node" "*"
 
-"@types/bunyan@^1.8.0":
-  version "1.8.6"
-  resolved "https://registry.yarnpkg.com/@types/bunyan/-/bunyan-1.8.6.tgz#6527641cca30bedec5feb9ab527b7803b8000582"
-  integrity sha512-YiozPOOsS6bIuz31ilYqR5SlLif4TBWsousN2aCWLi5233nZSX19tFbcQUPdR7xJ8ypPyxkCGNxg0CIV5n9qxQ==
-  dependencies:
-    "@types/node" "*"
-
 "@types/caseless@*":
   version "0.12.2"
   resolved "https://registry.yarnpkg.com/@types/caseless/-/caseless-0.12.2.tgz#f65d3d6389e01eeb458bd54dc8f52b95a9463bc8"
@@ -2890,16 +2883,6 @@ builtin-status-codes@^3.0.0:
   resolved "https://registry.yarnpkg.com/builtin-status-codes/-/builtin-status-codes-3.0.0.tgz#85982878e21b98e1c66425e03d0174788f569ee8"
   integrity sha1-hZgoeOIbmOHGZCXgPQF0eI9Wnug=
 
-bunyan@^1.8.10:
-  version "1.8.12"
-  resolved "https://registry.yarnpkg.com/bunyan/-/bunyan-1.8.12.tgz#f150f0f6748abdd72aeae84f04403be2ef113797"
-  integrity sha1-8VDw9nSKvdcq6uhPBEA74u8RN5c=
-  optionalDependencies:
-    dtrace-provider "~0.8"
-    moment "^2.10.6"
-    mv "~2"
-    safe-json-stringify "~1"
-
 byline@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/byline/-/byline-5.0.0.tgz#741c5216468eadc457b03410118ad77de8c1ddb1"
@@ -4596,13 +4579,6 @@ drivelist@^6.4.3:
     nan "^2.10.0"
     prebuild-install "^4.0.0"
 
-dtrace-provider@~0.8:
-  version "0.8.8"
-  resolved "https://registry.yarnpkg.com/dtrace-provider/-/dtrace-provider-0.8.8.tgz#2996d5490c37e1347be263b423ed7b297fb0d97e"
-  integrity sha512-b7Z7cNtHPhH9EJhNNbbeqTcXB8LGFFZhq1PGgEvpeHlzd36bhbdTWoE/Ba/YguqpBSlAPKnARWhVlhunCMwfxg==
-  dependencies:
-    nan "^2.14.0"
-
 dugite-extra@0.1.12:
   version "0.1.12"
   resolved "https://registry.yarnpkg.com/dugite-extra/-/dugite-extra-0.1.12.tgz#fc2f5e2fb288e688aaec7a770a24a21293831175"
@@ -8458,7 +8434,7 @@ modify-values@^1.0.0:
   resolved "https://registry.yarnpkg.com/modify-values/-/modify-values-1.0.1.tgz#b3939fa605546474e3e3e3c63d64bd43b4ee6022"
   integrity sha512-xV2bxeN6F7oYjZWTe/YPAy6MN2M+sL4u/Rlm2AHCIVGfo2p1yGmBHQ6vHehl4bRTZBdHu3TSkWdYgkwpYzAGSw==
 
-moment@^2.10.6, moment@^2.21.0, moment@^2.6.0:
+moment@^2.21.0, moment@^2.6.0:
   version "2.24.0"
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.24.0.tgz#0d055d53f5052aa653c9f6eb68bb5d12bf5c2b5b"
   integrity sha512-bV7f+6l2QigeBBZSM/6yTNq4P2fNpSWj/0e7jQcy87A8e7o2nAfP/34/2ky5Vw4B9S446EtIhodAzkFCcR4dQg==
@@ -8546,7 +8522,7 @@ mute-stream@0.0.7:
   resolved "https://registry.yarnpkg.com/mute-stream/-/mute-stream-0.0.7.tgz#3075ce93bc21b8fab43e1bc4da7e8115ed1e7bab"
   integrity sha1-MHXOk7whuPq0PhvE2n6BFe0ee6s=
 
-mv@^2.1.1, mv@~2:
+mv@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/mv/-/mv-2.1.1.tgz#ae6ce0d6f6d5e0a4f7d893798d03c1ea9559b6a2"
   integrity sha1-rmzg1vbV4KT32JN5jQPB6pVZtqI=
@@ -10852,11 +10828,6 @@ safe-buffer@^5.0.1, safe-buffer@^5.1.0, safe-buffer@^5.1.1, safe-buffer@^5.1.2,
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
   integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
 
-safe-json-stringify@~1:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/safe-json-stringify/-/safe-json-stringify-1.2.0.tgz#356e44bc98f1f93ce45df14bcd7c01cda86e0afd"
-  integrity sha512-gH8eh2nZudPQO6TytOvbxnuhYBOvDBBLW52tz5q6X58lJcd/tkmqFR+5Z9adS8aJtURSXWThWy/xJtJwixErvg==
-
 safe-regex@^1.1.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/safe-regex/-/safe-regex-1.1.0.tgz#40a3669f3b077d1e943d44629e157dd48023bf2e"