diff --git a/.ci/packer_cache_for_branch.sh b/.ci/packer_cache_for_branch.sh
index 0d9b22b04dbd0..bc427bf927f11 100755
--- a/.ci/packer_cache_for_branch.sh
+++ b/.ci/packer_cache_for_branch.sh
@@ -49,7 +49,8 @@ tar -cf "$HOME/.kibana/bootstrap_cache/$branch.tar" \
   .chromium \
   .es \
   .chromedriver \
-  .geckodriver;
+  .geckodriver \
+  .yarn-local-mirror;
 
 echo "created $HOME/.kibana/bootstrap_cache/$branch.tar"
 
diff --git a/.gitignore b/.gitignore
index 45034583cffbb..b786a419383b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -75,3 +75,6 @@ report.asciidoc
 
 # TS incremental build cache
 *.tsbuildinfo
+
+# Yarn local mirror content
+.yarn-local-mirror
diff --git a/.yarnrc b/.yarnrc
new file mode 100644
index 0000000000000..eceec9ca34a22
--- /dev/null
+++ b/.yarnrc
@@ -0,0 +1,5 @@
+# Configure an offline yarn mirror in the data folder
+yarn-offline-mirror ".yarn-local-mirror"
+
+# Always look into the cache first before fetching online
+--install.prefer-offline true
diff --git a/package.json b/package.json
index 571dc7302f924..ab1cb90c900ac 100644
--- a/package.json
+++ b/package.json
@@ -243,7 +243,7 @@
     "moment": "^2.24.0",
     "moment-duration-format": "^2.3.2",
     "moment-timezone": "^0.5.27",
-    "monaco-editor": "~0.17.0",
+    "monaco-editor": "^0.17.0",
     "mustache": "^2.3.2",
     "ngreact": "^0.5.1",
     "nock": "12.0.3",
@@ -589,7 +589,7 @@
     "babel-loader": "^8.0.6",
     "babel-plugin-add-module-exports": "^1.0.2",
     "babel-plugin-istanbul": "^6.0.0",
-    "babel-plugin-require-context-hook": "npm:babel-plugin-require-context-hook-babel7@1.0.0",
+    "babel-plugin-require-context-hook": "^1.0.0",
     "babel-plugin-styled-components": "^1.10.7",
     "babel-plugin-transform-react-remove-prop-types": "^0.4.24",
     "backport": "5.6.0",
@@ -775,7 +775,7 @@
     "react-fast-compare": "^2.0.4",
     "react-grid-layout": "^0.16.2",
     "react-markdown": "^4.3.1",
-    "react-monaco-editor": "~0.27.0",
+    "react-monaco-editor": "^0.27.0",
     "react-popper-tooltip": "^2.10.1",
     "react-resize-detector": "^4.2.0",
     "react-reverse-portal": "^1.0.4",
diff --git a/src/dev/ci_setup/setup.sh b/src/dev/ci_setup/setup.sh
index aabc1e75b9025..61f578ba33971 100755
--- a/src/dev/ci_setup/setup.sh
+++ b/src/dev/ci_setup/setup.sh
@@ -14,7 +14,7 @@ echo " -- TEST_ES_SNAPSHOT_VERSION='$TEST_ES_SNAPSHOT_VERSION'"
 ### install dependencies
 ###
 echo " -- installing node.js dependencies"
-yarn kbn bootstrap --prefer-offline
+yarn kbn bootstrap
 
 ###
 ### Download es snapshots
diff --git a/vars/kibanaCoverage.groovy b/vars/kibanaCoverage.groovy
index c43be9fb17ee0..521672e4bf48c 100644
--- a/vars/kibanaCoverage.groovy
+++ b/vars/kibanaCoverage.groovy
@@ -145,7 +145,7 @@ def generateReports(title) {
     source src/dev/ci_setup/setup_env.sh true
     # bootstrap from x-pack folder
     cd x-pack
-    yarn kbn bootstrap --prefer-offline
+    yarn kbn bootstrap
     # Return to project root
     cd ..
     . src/dev/code_coverage/shell_scripts/extract_archives.sh
@@ -172,7 +172,7 @@ def uploadCombinedReports() {
 def ingestData(jobName, buildNum, buildUrl, previousSha, teamAssignmentsPath, title) {
   kibanaPipeline.bash("""
     source src/dev/ci_setup/setup_env.sh
-    yarn kbn bootstrap --prefer-offline
+    yarn kbn bootstrap
     # Using existing target/kibana-coverage folder
     . src/dev/code_coverage/shell_scripts/generate_team_assignments_and_ingest_coverage.sh '${jobName}' ${buildNum} '${buildUrl}' '${previousSha}' '${teamAssignmentsPath}'
   """, title)
diff --git a/vars/kibanaTeamAssign.groovy b/vars/kibanaTeamAssign.groovy
index caf1ee36e25a8..590d3af4b7bf9 100644
--- a/vars/kibanaTeamAssign.groovy
+++ b/vars/kibanaTeamAssign.groovy
@@ -1,7 +1,7 @@
 def generateTeamAssignments(teamAssignmentsPath, title) {
   kibanaPipeline.bash("""
     source src/dev/ci_setup/setup_env.sh
-    yarn kbn bootstrap --prefer-offline
+    yarn kbn bootstrap
 
     # Build team assignments dat file
     node scripts/generate_team_assignments.js --verbose --dest '${teamAssignmentsPath}'
diff --git a/yarn.lock b/yarn.lock
index dc171a44dca1f..1cde1266ca38f 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -7849,7 +7849,7 @@ babel-plugin-react-docgen@^4.1.0:
     react-docgen "^5.0.0"
     recast "^0.14.7"
 
-babel-plugin-require-context-hook@^1.0.0, "babel-plugin-require-context-hook@npm:babel-plugin-require-context-hook-babel7@1.0.0":
+babel-plugin-require-context-hook@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/babel-plugin-require-context-hook-babel7/-/babel-plugin-require-context-hook-babel7-1.0.0.tgz#1273d4cee7e343d0860966653759a45d727e815d"
   integrity sha512-kez0BAN/cQoyO1Yu1nre1bQSYZEF93Fg7VQiBHFfMWuaZTy7vJSTT4FY68FwHTYG53Nyt0A7vpSObSVxwweQeQ==
@@ -20267,7 +20267,7 @@ moment-timezone@^0.5.27:
   resolved "https://registry.yarnpkg.com/moment/-/moment-2.28.0.tgz#cdfe73ce01327cee6537b0fafac2e0f21a237d75"
   integrity sha512-Z5KOjYmnHyd/ukynmFd/WwyXHd7L4J9vTI/nn5Ap9AVUgaAE15VvQ9MOGmJJygEUklupqIrFnor/tjTwRU+tQw==
 
-monaco-editor@~0.17.0:
+monaco-editor@^0.17.0:
   version "0.17.1"
   resolved "https://registry.yarnpkg.com/monaco-editor/-/monaco-editor-0.17.1.tgz#8fbe96ca54bfa75262706e044f8f780e904aa45c"
   integrity sha512-JAc0mtW7NeO+0SwPRcdkfDbWLgkqL9WfP1NbpP9wNASsW6oWqgZqNIWt4teymGjZIXTElx3dnQmUYHmVrJ7HxA==
@@ -23323,7 +23323,7 @@ react-moment-proptypes@^1.7.0:
   dependencies:
     moment ">=1.6.0"
 
-react-monaco-editor@~0.27.0:
+react-monaco-editor@^0.27.0:
   version "0.27.0"
   resolved "https://registry.yarnpkg.com/react-monaco-editor/-/react-monaco-editor-0.27.0.tgz#2dbf47b8fd4d8e4763934051f07291d9b128bb89"
   integrity sha512-Im40xO4DuFlQ6kVcSBHC+p70fD/5aErUy1uyLT9RZ4nlehn6BOPpwmcw/2IN/LfMvy8X4WmLuuvrNftBZLH+vA==