diff --git a/packages/datagateway-common/package.json b/packages/datagateway-common/package.json
index 00a97263b..bf8f05482 100644
--- a/packages/datagateway-common/package.json
+++ b/packages/datagateway-common/package.json
@@ -32,7 +32,7 @@
     "redux-thunk": "2.4.1",
     "resize-observer-polyfill": "1.5.1",
     "tslib": "2.6.0",
-    "typescript": "4.9.3"
+    "typescript": "5.3.3"
   },
   "peerDependencies": {
     "@mui/icons-material": ">= 5.5.0 < 6",
diff --git a/packages/datagateway-dataview/package.json b/packages/datagateway-dataview/package.json
index 018db9dc7..fc624497b 100644
--- a/packages/datagateway-dataview/package.json
+++ b/packages/datagateway-dataview/package.json
@@ -51,7 +51,7 @@
     "redux-thunk": "2.4.1",
     "single-spa-react": "4.6.1",
     "tslib": "2.6.0",
-    "typescript": "4.9.3",
+    "typescript": "5.3.3",
     "url-search-params-polyfill": "8.2.4"
   },
   "scripts": {
diff --git a/packages/datagateway-download/package.json b/packages/datagateway-download/package.json
index cde55af51..3ab3e540f 100644
--- a/packages/datagateway-download/package.json
+++ b/packages/datagateway-download/package.json
@@ -41,7 +41,7 @@
     "react-virtualized": "9.22.3",
     "single-spa-react": "4.6.1",
     "tslib": "2.6.0",
-    "typescript": "4.9.3"
+    "typescript": "5.3.3"
   },
   "devDependencies": {
     "@babel/eslint-parser": "7.23.3",
diff --git a/packages/datagateway-search/package.json b/packages/datagateway-search/package.json
index 607716426..7e4c6be9d 100644
--- a/packages/datagateway-search/package.json
+++ b/packages/datagateway-search/package.json
@@ -51,7 +51,7 @@
     "resize-observer-polyfill": "1.5.1",
     "single-spa-react": "4.6.1",
     "tslib": "2.6.0",
-    "typescript": "4.9.3",
+    "typescript": "5.3.3",
     "url-search-params-polyfill": "8.2.4"
   },
   "scripts": {
diff --git a/yarn.lock b/yarn.lock
index 5e5d780d0..74f15a094 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -6447,7 +6447,7 @@ __metadata:
     redux-thunk: 2.4.1
     resize-observer-polyfill: 1.5.1
     tslib: 2.6.0
-    typescript: 4.9.3
+    typescript: 5.3.3
   peerDependencies:
     "@mui/icons-material": ">= 5.5.0 < 6"
     "@mui/material": ">= 5.5.0 < 6"
@@ -6529,7 +6529,7 @@ __metadata:
     single-spa-react: 4.6.1
     start-server-and-test: 2.0.0
     tslib: 2.6.0
-    typescript: 4.9.3
+    typescript: 5.3.3
     url-search-params-polyfill: 8.2.4
   languageName: unknown
   linkType: soft
@@ -6594,7 +6594,7 @@ __metadata:
     single-spa-react: 4.6.1
     start-server-and-test: 2.0.0
     tslib: 2.6.0
-    typescript: 4.9.3
+    typescript: 5.3.3
   languageName: unknown
   linkType: soft
 
@@ -6671,7 +6671,7 @@ __metadata:
     single-spa-react: 4.6.1
     start-server-and-test: 2.0.0
     tslib: 2.6.0
-    typescript: 4.9.3
+    typescript: 5.3.3
     url-search-params-polyfill: 8.2.4
   languageName: unknown
   linkType: soft
@@ -15924,23 +15924,23 @@ __metadata:
   languageName: node
   linkType: hard
 
-"typescript@npm:4.9.3":
-  version: 4.9.3
-  resolution: "typescript@npm:4.9.3"
+"typescript@npm:5.3.3":
+  version: 5.3.3
+  resolution: "typescript@npm:5.3.3"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: 17b8f816050b412403e38d48eef0e893deb6be522d6dc7caf105e54a72e34daf6835c447735fd2b28b66784e72bfbf87f627abb4818a8e43d1fa8106396128dc
+  checksum: 2007ccb6e51bbbf6fde0a78099efe04dc1c3dfbdff04ca3b6a8bc717991862b39fd6126c0c3ebf2d2d98ac5e960bcaa873826bb2bb241f14277034148f41f6a2
   languageName: node
   linkType: hard
 
-"typescript@patch:typescript@4.9.3#~builtin<compat/typescript>":
-  version: 4.9.3
-  resolution: "typescript@patch:typescript@npm%3A4.9.3#~builtin<compat/typescript>::version=4.9.3&hash=a66ed4"
+"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=e012d7"
   bin:
     tsc: bin/tsc
     tsserver: bin/tsserver
-  checksum: d7bdcf5e18193f709339540d69577f7b0389000265db2bf10edfaa67336a29d6bcbee11828084150f7fdd110d605794cfa6df33bebc0a2e33daad2dbe2a7a59f
+  checksum: 4e604a9e107ce0c23b16a2f8d79d0531d4d8fe9ebbb7a8c395c66998c39892f0e0a071ef0b0d4e66420a8ec2b8d6cfd9cdb29ba24f25b37cba072e9282376df9
   languageName: node
   linkType: hard