diff --git a/package.json b/package.json
index c0102eece7..c2915d868f 100644
--- a/package.json
+++ b/package.json
@@ -121,7 +121,7 @@
     "ts-node": "10.9.2",
     "ts-unused-exports": "10.0.1",
     "tslib": "2.6.2",
-    "typescript": "5.3.3",
+    "typescript": "5.5.3",
     "webpack": "5.90.0",
     "webpack-cli": "5.1.4",
     "webpack-dev-server": "4.15.1",
diff --git a/packages/comlink-transfer-handlers/package.json b/packages/comlink-transfer-handlers/package.json
index 41807c12c9..b68e4b9267 100644
--- a/packages/comlink-transfer-handlers/package.json
+++ b/packages/comlink-transfer-handlers/package.json
@@ -22,6 +22,6 @@
   "devDependencies": {
     "@foxglove/tsconfig": "2.0.0",
     "comlink": "github:foxglove/comlink#9181fa505671b35b1e66e0a8361a6fc1bdd03307",
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   }
 }
diff --git a/packages/hooks/package.json b/packages/hooks/package.json
index 7b58bd0941..9ea7d8a89c 100644
--- a/packages/hooks/package.json
+++ b/packages/hooks/package.json
@@ -24,7 +24,7 @@
     "@testing-library/react": "14.0.0",
     "@types/foxglove__web": "workspace:*",
     "@types/lodash-es": "^4",
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   },
   "dependencies": {
     "@foxglove/log": "workspace:*",
diff --git a/packages/log/package.json b/packages/log/package.json
index e283836701..0e566f5e67 100644
--- a/packages/log/package.json
+++ b/packages/log/package.json
@@ -21,6 +21,6 @@
   },
   "devDependencies": {
     "@foxglove/tsconfig": "2.0.0",
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   }
 }
diff --git a/packages/mcap-support/package.json b/packages/mcap-support/package.json
index 7bb085a9c1..756f2afcde 100644
--- a/packages/mcap-support/package.json
+++ b/packages/mcap-support/package.json
@@ -23,7 +23,7 @@
   "devDependencies": {
     "@foxglove/tsconfig": "2.0.0",
     "@types/protobufjs": "workspace:*",
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   },
   "dependencies": {
     "@foxglove/message-definition": "0.3.1",
diff --git a/packages/message-path/package.json b/packages/message-path/package.json
index 6a9f59b150..d6162b44b2 100644
--- a/packages/message-path/package.json
+++ b/packages/message-path/package.json
@@ -25,6 +25,6 @@
   "devDependencies": {
     "@foxglove/tsconfig": "2.0.0",
     "@types/nearley": "2.11.5",
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   }
 }
diff --git a/packages/studio-base/package.json b/packages/studio-base/package.json
index 7d14a6a5e0..ff65a5292a 100644
--- a/packages/studio-base/package.json
+++ b/packages/studio-base/package.json
@@ -170,7 +170,7 @@
     "ts-key-enum": "2.0.12",
     "ts-loader": "9.5.1",
     "tss-react": "4.8.6",
-    "typescript": "5.3.3",
+    "typescript": "5.5.3",
     "use-debounce": "10.0.0",
     "use-immer": "0.9.0",
     "uuid": "9.0.1",
diff --git a/packages/studio/package.json b/packages/studio/package.json
index 10a345c6f0..c2d686ccae 100644
--- a/packages/studio/package.json
+++ b/packages/studio/package.json
@@ -20,6 +20,6 @@
   },
   "devDependencies": {
     "@foxglove/tsconfig": "2.0.0",
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   }
 }
diff --git a/packages/typescript-transformers/package.json b/packages/typescript-transformers/package.json
index 1247863238..716b4cb055 100644
--- a/packages/typescript-transformers/package.json
+++ b/packages/typescript-transformers/package.json
@@ -20,7 +20,7 @@
     "prepack": "tsc -b"
   },
   "dependencies": {
-    "typescript": "5.3.3"
+    "typescript": "5.5.3"
   },
   "devDependencies": {
     "@foxglove/tsconfig": "2.0.0"
diff --git a/yarn.lock b/yarn.lock
index 03f5c09112..63d56fe649 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2538,7 +2538,7 @@ __metadata:
   dependencies:
     "@foxglove/tsconfig": 2.0.0
     comlink: "github:foxglove/comlink#9181fa505671b35b1e66e0a8361a6fc1bdd03307"
-    typescript: 5.3.3
+    typescript: 5.5.3
   languageName: unknown
   linkType: soft
 
@@ -2612,7 +2612,7 @@ __metadata:
     "@types/lodash-es": ^4
     lodash-es: 4.17.21
     shallowequal: 1.1.0
-    typescript: 5.3.3
+    typescript: 5.5.3
   peerDependencies:
     react: ^18.2.0
   languageName: unknown
@@ -2632,7 +2632,7 @@ __metadata:
   resolution: "@foxglove/log@workspace:packages/log"
   dependencies:
     "@foxglove/tsconfig": 2.0.0
-    typescript: 5.3.3
+    typescript: 5.5.3
   languageName: unknown
   linkType: soft
 
@@ -2658,7 +2658,7 @@ __metadata:
     flatbuffers: 23.5.26
     flatbuffers_reflection: 0.0.7
     protobufjs: "patch:protobufjs@7.2.4#../../patches/protobufjs.patch"
-    typescript: 5.3.3
+    typescript: 5.5.3
   languageName: unknown
   linkType: soft
 
@@ -2683,7 +2683,7 @@ __metadata:
     "@foxglove/tsconfig": 2.0.0
     "@types/nearley": 2.11.5
     nearley: 2.20.1
-    typescript: 5.3.3
+    typescript: 5.5.3
   languageName: unknown
   linkType: soft
 
@@ -3013,7 +3013,7 @@ __metadata:
     ts-key-enum: 2.0.12
     ts-loader: 9.5.1
     tss-react: 4.8.6
-    typescript: 5.3.3
+    typescript: 5.5.3
     use-debounce: 10.0.0
     use-immer: 0.9.0
     uuid: 9.0.1
@@ -3106,7 +3106,7 @@ __metadata:
   resolution: "@foxglove/studio@workspace:packages/studio"
   dependencies:
     "@foxglove/tsconfig": 2.0.0
-    typescript: 5.3.3
+    typescript: 5.5.3
   languageName: unknown
   linkType: soft
 
@@ -3154,7 +3154,7 @@ __metadata:
   resolution: "@foxglove/typescript-transformers@workspace:packages/typescript-transformers"
   dependencies:
     "@foxglove/tsconfig": 2.0.0
-    typescript: 5.3.3
+    typescript: 5.5.3
   languageName: unknown
   linkType: soft
 
@@ -13123,7 +13123,7 @@ __metadata:
     ts-node: 10.9.2
     ts-unused-exports: 10.0.1
     tslib: 2.6.2
-    typescript: 5.3.3
+    typescript: 5.5.3
     webpack: 5.90.0
     webpack-cli: 5.1.4
     webpack-dev-server: 4.15.1
@@ -22116,7 +22116,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:5.3.3, typescript@npm:^4 || ^5, typescript@npm:^5.3.3":
+"typescript@npm:5.5.3":
+  version: 5.5.3
+  resolution: "typescript@npm:5.5.3"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: 4b4f14313484d5c86064d04ba892544801fa551f5cf72719b540b498056fec7fc192d0bbdb2ba1448e759b1548769956da9e43e7c16781e8d8856787b0575004
+  languageName: node
+  linkType: hard
+
+"typescript@npm:^4 || ^5, typescript@npm:^5.3.3":
   version: 5.3.3
   resolution: "typescript@npm:5.3.3"
   bin:
@@ -22126,7 +22136,17 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@5.3.3#~builtin<compat/typescript>, typescript@patch:typescript@^4 || ^5#~builtin<compat/typescript>, typescript@patch:typescript@^5.3.3#~builtin<compat/typescript>":
+"typescript@patch:typescript@5.5.3#~builtin<compat/typescript>":
+  version: 5.5.3
+  resolution: "typescript@patch:typescript@npm%3A5.5.3#~builtin<compat/typescript>::version=5.5.3&hash=f3b441"
+  bin:
+    tsc: bin/tsc
+    tsserver: bin/tsserver
+  checksum: 6853be4607706cc1ad2f16047cf1cd72d39f79acd5f9716e1d23bc0e462c7f59be7458fe58a21665e7657a05433d7ab8419d093a5a4bd5f3a33f879b35d2769b
+  languageName: node
+  linkType: hard
+
+"typescript@patch:typescript@^4 || ^5#~builtin<compat/typescript>, typescript@patch:typescript@^5.3.3#~builtin<compat/typescript>":
   version: 5.3.3
   resolution: "typescript@patch:typescript@npm%3A5.3.3#~builtin<compat/typescript>::version=5.3.3&hash=f3b441"
   bin: