diff --git a/apps/govuk-template/package.json b/apps/govuk-template/package.json
index 9b8a257a4..311771458 100644
--- a/apps/govuk-template/package.json
+++ b/apps/govuk-template/package.json
@@ -33,7 +33,7 @@
     ]
   },
   "devDependencies": {
-    "@apollo/client": "3.11.10",
+    "@apollo/client": "3.12.2",
     "@graphql-tools/schema": "10.0.11",
     "@not-govuk/anchor-list": "workspace:^0.15.1",
     "@not-govuk/app-composer": "workspace:^0.15.1",
diff --git a/lib/app-composer/package.json b/lib/app-composer/package.json
index 7e94320fc..d3bb00821 100644
--- a/lib/app-composer/package.json
+++ b/lib/app-composer/package.json
@@ -23,7 +23,7 @@
     "@not-govuk/router": "workspace:^0.15.1"
   },
   "peerDependencies": {
-    "@apollo/client": "^3.11.10",
+    "@apollo/client": "^3.12.2",
     "@not-govuk/user-info": "^0.15.1",
     "react": "^18.3.1",
     "react-helmet-async": "^2.0.5",
diff --git a/package.json b/package.json
index 3c5f65057..a29718a10 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
   },
   "homepage": "https://github.com/daniel-ac-martin/NotGovUK#readme",
   "devDependencies": {
-    "@apollo/client": "3.11.10",
+    "@apollo/client": "3.12.2",
     "@babel/core": "7.26.0",
     "@babel/plugin-proposal-export-namespace-from": "7.18.9",
     "@babel/preset-env": "7.26.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index c4609f9c3..e64d93aa3 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -4,7 +4,7 @@ importers:
 
   .:
     specifiers:
-      '@apollo/client': 3.11.10
+      '@apollo/client': 3.12.2
       '@babel/core': 7.26.0
       '@babel/plugin-proposal-export-namespace-from': 7.18.9
       '@babel/preset-env': 7.26.0
@@ -50,7 +50,7 @@ importers:
       webpack-dev-middleware: 6.1.3
       webpack-hot-middleware: 2.26.1
     devDependencies:
-      '@apollo/client': 3.11.10_vsw25juzkyj7spaf6wjn5upvjq
+      '@apollo/client': 3.12.2_vsw25juzkyj7spaf6wjn5upvjq
       '@babel/core': 7.26.0
       '@babel/plugin-proposal-export-namespace-from': 7.18.9_@babel+core@7.26.0
       '@babel/preset-env': 7.26.0_@babel+core@7.26.0
@@ -168,7 +168,7 @@ importers:
 
   apps/govuk-template:
     specifiers:
-      '@apollo/client': 3.11.10
+      '@apollo/client': 3.12.2
       '@graphql-tools/schema': 10.0.11
       '@not-govuk/anchor-list': workspace:^0.15.1
       '@not-govuk/app-composer': workspace:^0.15.1
@@ -206,7 +206,7 @@ importers:
       webpack-dev-middleware: 6.1.3
       webpack-hot-middleware: 2.26.1
     devDependencies:
-      '@apollo/client': 3.11.10_pa3gullttjju2hvnggb5g42c3e
+      '@apollo/client': 3.12.2_pa3gullttjju2hvnggb5g42c3e
       '@graphql-tools/schema': 10.0.11_graphql@15.9.0
       '@not-govuk/anchor-list': link:../../components-internal/anchor-list
       '@not-govuk/app-composer': link:../../lib/app-composer
@@ -2305,13 +2305,13 @@ packages:
       '@jridgewell/gen-mapping': 0.3.5
       '@jridgewell/trace-mapping': 0.3.25
 
-  /@apollo/client/3.11.10_pa3gullttjju2hvnggb5g42c3e:
-    resolution: {integrity: sha512-IfGc+X4il0rDqVQBBWdxIKM+ciDCiDzBq9+Bg9z4tJMi87uF6po4v+ddiac1wP0ARgVPsFwEIGxK7jhN4pW8jg==}
+  /@apollo/client/3.12.2_pa3gullttjju2hvnggb5g42c3e:
+    resolution: {integrity: sha512-dkacsdMgVsrrQhLpN4JqZTIEfnNsPVwny+4vccSRqheWZElzUz1Xi0h39p2+TieS1f+wwvyzwpoJEV57vwzT9Q==}
     peerDependencies:
       graphql: ^15.0.0 || ^16.0.0
       graphql-ws: ^5.5.5
-      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc <19.0.0
-      react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc <19.0.0
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc
+      react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc
       subscriptions-transport-ws: ^0.9.0 || ^0.11.0
     peerDependenciesMeta:
       graphql-ws:
@@ -2344,13 +2344,13 @@ packages:
       - '@types/react'
     dev: true
 
-  /@apollo/client/3.11.10_vsw25juzkyj7spaf6wjn5upvjq:
-    resolution: {integrity: sha512-IfGc+X4il0rDqVQBBWdxIKM+ciDCiDzBq9+Bg9z4tJMi87uF6po4v+ddiac1wP0ARgVPsFwEIGxK7jhN4pW8jg==}
+  /@apollo/client/3.12.2_vsw25juzkyj7spaf6wjn5upvjq:
+    resolution: {integrity: sha512-dkacsdMgVsrrQhLpN4JqZTIEfnNsPVwny+4vccSRqheWZElzUz1Xi0h39p2+TieS1f+wwvyzwpoJEV57vwzT9Q==}
     peerDependencies:
       graphql: ^15.0.0 || ^16.0.0
       graphql-ws: ^5.5.5
-      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc <19.0.0
-      react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc <19.0.0
+      react: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc
+      react-dom: ^16.8.0 || ^17.0.0 || ^18.0.0 || >=19.0.0-rc
       subscriptions-transport-ws: ^0.9.0 || ^0.11.0
     peerDependenciesMeta:
       graphql-ws: