diff --git a/package.json b/package.json
index 6ef3a0e26..c01f40fc4 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "node-fetch": "^2",
     "nx": "^18.3.5",
     "prettier": "^2.8.8",
-    "projen": "^0.84.13",
+    "projen": "^0.85.0",
     "ts-node": "^10.9.2",
     "typescript": "^4.9.5"
   },
diff --git a/packages/@aws-cdk/aws-service-spec/package.json b/packages/@aws-cdk/aws-service-spec/package.json
index 1615068cb..09660f811 100644
--- a/packages/@aws-cdk/aws-service-spec/package.json
+++ b/packages/@aws-cdk/aws-service-spec/package.json
@@ -40,7 +40,7 @@
     "jest": "^29.7.0",
     "jest-junit": "^15",
     "prettier": "^2.8.8",
-    "projen": "^0.84.13",
+    "projen": "^0.85.0",
     "source-map-support": "^0.5.21",
     "ts-jest": "^29.2.4",
     "typescript": "^5.5.4"
diff --git a/packages/@aws-cdk/service-spec-importers/package.json b/packages/@aws-cdk/service-spec-importers/package.json
index e23d20dc7..a4c21f1a5 100644
--- a/packages/@aws-cdk/service-spec-importers/package.json
+++ b/packages/@aws-cdk/service-spec-importers/package.json
@@ -50,7 +50,7 @@
     "jest": "^29.7.0",
     "jest-junit": "^15",
     "prettier": "^2.8.8",
-    "projen": "^0.84.13",
+    "projen": "^0.85.0",
     "source-map-support": "^0.5.21",
     "ts-jest": "^29.2.4",
     "ts-json-schema-generator": "^1.5.1",
diff --git a/packages/@aws-cdk/service-spec-types/package.json b/packages/@aws-cdk/service-spec-types/package.json
index e6dc30da8..f2b8f3886 100644
--- a/packages/@aws-cdk/service-spec-types/package.json
+++ b/packages/@aws-cdk/service-spec-types/package.json
@@ -38,7 +38,7 @@
     "jest": "^29.7.0",
     "jest-junit": "^15",
     "prettier": "^2.8.8",
-    "projen": "^0.84.13",
+    "projen": "^0.85.0",
     "ts-jest": "^29.2.4",
     "typescript": "^4.9.5"
   },
diff --git a/packages/@cdklabs/tskb/package.json b/packages/@cdklabs/tskb/package.json
index 49bf19b24..abb031246 100644
--- a/packages/@cdklabs/tskb/package.json
+++ b/packages/@cdklabs/tskb/package.json
@@ -38,7 +38,7 @@
     "jest": "^29.7.0",
     "jest-junit": "^15",
     "prettier": "^2.8.8",
-    "projen": "^0.84.13",
+    "projen": "^0.85.0",
     "ts-jest": "^29.2.4",
     "typescript": "^4.9.5"
   },
diff --git a/packages/@cdklabs/typewriter/package.json b/packages/@cdklabs/typewriter/package.json
index 0273440d6..4e83eafb2 100644
--- a/packages/@cdklabs/typewriter/package.json
+++ b/packages/@cdklabs/typewriter/package.json
@@ -38,7 +38,7 @@
     "jest": "^29.7.0",
     "jest-junit": "^15",
     "prettier": "^2.8.8",
-    "projen": "^0.84.13",
+    "projen": "^0.85.0",
     "ts-jest": "^29.2.4",
     "typescript": "^4.9.5"
   },
diff --git a/yarn.lock b/yarn.lock
index 0f3be7a4b..a1a607226 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -863,9 +863,9 @@
   integrity sha512-I4q9QU9MQv4oEOz4tAHJtNz1cwuLxn2F3xcc2iV5WdqLPpUnj30aUuxt1mAxYTG+oe8CZMV/+6rU4S4gRDzqtQ==
 
 "@types/yargs@^17.0.8":
-  version "17.0.32"
-  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-17.0.32.tgz#030774723a2f7faafebf645f4e5a48371dca6229"
-  integrity sha512-xQ67Yc/laOG5uMfX/093MRlGGCIBzZMarVa+gfNKJxWAIgykYpVGkBdbqEzGDDfCrVUj6Hiff4mTZ5BA6TmAog==
+  version "17.0.33"
+  resolved "https://registry.yarnpkg.com/@types/yargs/-/yargs-17.0.33.tgz#8c32303da83eec050a84b3c7ae7b9f922d13e32d"
+  integrity sha512-WpxBCKWPLr4xSsHgz511rFJAM+wS28w2zEO1QDNY5zM/S8ok70NNfztH0xwhqKyaK0OHCbN98LDAZuy1ctxDkA==
   dependencies:
     "@types/yargs-parser" "*"
 
@@ -1797,9 +1797,9 @@ ejs@^3.1.10:
     jake "^10.8.5"
 
 electron-to-chromium@^1.5.4:
-  version "1.5.4"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.5.4.tgz#cd477c830dd6fca41fbd5465c1ff6ce08ac22343"
-  integrity sha512-orzA81VqLyIGUEA77YkVA1D+N+nNfl2isJVjjmOyrlxuooZ19ynb+dOlaDTqd/idKRS9lDCSBmtzM+kyCsMnkA==
+  version "1.5.5"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.5.5.tgz#03bfdf422bdd2c05ee2657efedde21264a1a566b"
+  integrity sha512-QR7/A7ZkMS8tZuoftC/jfqNkZLQO779SSW3YuZHP4eXpj3EffGLFcB/Xu9AAZQzLccTiCV+EmUo3ha4mQ9wnlA==
 
 emittery@^0.13.1:
   version "0.13.1"
@@ -3781,10 +3781,10 @@ pretty-format@^29.0.0, pretty-format@^29.7.0:
     ansi-styles "^5.0.0"
     react-is "^18.0.0"
 
-projen@^0.84.13:
-  version "0.84.13"
-  resolved "https://registry.yarnpkg.com/projen/-/projen-0.84.13.tgz#f9b4b16d0efdcbec62b4429e06fa5344ce7bf0a2"
-  integrity sha512-N9XocN5wcYg5ZeyQwr76sxRPncdXdkIrlOJhISFtI9jMZxEU6D+ms/oKLCc85+KwJH9qbhrR/+5h6Nys54n0kA==
+projen@^0.85.0:
+  version "0.85.0"
+  resolved "https://registry.yarnpkg.com/projen/-/projen-0.85.0.tgz#ce182db7e37a7784172a49d037693ce2a272d561"
+  integrity sha512-5W4+h/f5eDENFVeOdAGnuZQD88BSCNy7gxYUge9L87qlbvOR3cKF9fzEguFryGcBJKN6AtCjACsdMwHyNE4xPQ==
   dependencies:
     "@iarna/toml" "^2.2.5"
     case "^1.6.3"