diff --git a/package.json b/package.json
index 700cfd5dc..b75d3aed8 100644
--- a/package.json
+++ b/package.json
@@ -42,8 +42,8 @@
     ]
   },
   "resolutions": {
-    "@types/react": "^18",
-    "@types/react-dom": "^18",
+    "@types/react": "^19.0.0",
+    "@types/react-dom": "^19.0.0",
     "@octokit/rest": "^22.0.1",
     "@octokit/plugin-paginate-rest": "^14.0.0",
     "@octokit/plugin-rest-endpoint-methods": "^17.0.0",
diff --git a/packages/app/package.json b/packages/app/package.json
index 74d5d7ccf..a6b128c21 100644
--- a/packages/app/package.json
+++ b/packages/app/package.json
@@ -48,8 +48,8 @@
     "@backstage/ui": "backstage:^",
     "@remixicon/react": "^4.6.0",
     "backstage-plugin-techdocs-addon-mermaid": "^0.26.0",
-    "react": "^18.2.0",
-    "react-dom": "^18.2.0",
+    "react": "^19.0.0",
+    "react-dom": "^19.0.0",
     "react-router": "^6.3.0",
     "react-router-dom": "^6.3.0"
   },
diff --git a/yarn.lock b/yarn.lock
index c135383c4..247b3b654 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -15630,7 +15630,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/prop-types@npm:*, @types/prop-types@npm:^15.0.0, @types/prop-types@npm:^15.7.12, @types/prop-types@npm:^15.7.3":
+"@types/prop-types@npm:^15.0.0, @types/prop-types@npm:^15.7.12, @types/prop-types@npm:^15.7.3":
   version: 15.7.15
   resolution: "@types/prop-types@npm:15.7.15"
   checksum: 10/31aa2f59b28f24da6fb4f1d70807dae2aedfce090ec63eaf9ea01727a9533ef6eaf017de5bff99fbccad7d1c9e644f52c6c2ba30869465dd22b1a7221c29f356
@@ -15669,12 +15669,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/react-dom@npm:^18":
-  version: 18.3.7
-  resolution: "@types/react-dom@npm:18.3.7"
+"@types/react-dom@npm:^19.0.0":
+  version: 19.2.3
+  resolution: "@types/react-dom@npm:19.2.3"
   peerDependencies:
-    "@types/react": ^18.0.0
-  checksum: 10/317569219366d487a3103ba1e5e47154e95a002915fdcf73a44162c48fe49c3a57fcf7f57fc6979e70d447112681e6b13c6c3c1df289db8b544df4aab2d318f3
+    "@types/react": ^19.2.0
+  checksum: 10/616c4a8aee250ea05fb1e7b98e7e00475dd3a6c1c30d7be18b4b93caba832f4203106b3a496a6b147e5acc2da14575eca47bce234c633bca1f8430ef8ffb234a
   languageName: node
   linkType: hard
 
@@ -15708,13 +15708,12 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@types/react@npm:^18":
-  version: 18.3.28
-  resolution: "@types/react@npm:18.3.28"
+"@types/react@npm:^19.0.0":
+  version: 19.2.14
+  resolution: "@types/react@npm:19.2.14"
   dependencies:
-    "@types/prop-types": "npm:*"
     csstype: "npm:^3.2.2"
-  checksum: 10/6db7bb7f19957ee9f530baa7d143527f8befedad1585b064eb80777be0d84621157de75aba4f499ff429b10c5ef0c7d13e89be6bca3296ef71c80472894ff0eb
+  checksum: 10/fbff239089ee64b6bd9b00543594db498278b06de527ef1b0f71bb0eb09cc4445a71b5dd3c0d3d0257255c4eed94406be40a74ad4a987ade8a8d5dd65c82bc5f
   languageName: node
   linkType: hard
 
@@ -17040,8 +17039,8 @@ __metadata:
     "@types/node": "npm:^24.0.0"
     "@types/react-dom": "npm:*"
     backstage-plugin-techdocs-addon-mermaid: "npm:^0.26.0"
-    react: "npm:^18.2.0"
-    react-dom: "npm:^18.2.0"
+    react: "npm:^19.0.0"
+    react-dom: "npm:^19.0.0"
     react-router: "npm:^6.3.0"
     react-router-dom: "npm:^6.3.0"
   languageName: unknown
@@ -27108,7 +27107,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"loose-envify@npm:^1.0.0, loose-envify@npm:^1.1.0, loose-envify@npm:^1.4.0":
+"loose-envify@npm:^1.0.0, loose-envify@npm:^1.4.0":
   version: 1.4.0
   resolution: "loose-envify@npm:1.4.0"
   dependencies:
@@ -31495,15 +31494,14 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-dom@npm:^18.2.0":
-  version: 18.3.1
-  resolution: "react-dom@npm:18.3.1"
+"react-dom@npm:^19.0.0":
+  version: 19.2.6
+  resolution: "react-dom@npm:19.2.6"
   dependencies:
-    loose-envify: "npm:^1.1.0"
-    scheduler: "npm:^0.23.2"
+    scheduler: "npm:^0.27.0"
   peerDependencies:
-    react: ^18.3.1
-  checksum: 10/3f4b73a3aa083091173b29812b10394dd06f4ac06aff410b74702cfb3aa29d7b0ced208aab92d5272919b612e5cda21aeb1d54191848cf6e46e9e354f3541f81
+    react: ^19.2.6
+  checksum: 10/695122e37dec3460311231ff1f9a96368d74457d4ccf60010eaebc08c3e1c47b054c9267b40d98c689ae99d0c29a340acacfd405016a954a4f11613146191e68
   languageName: node
   linkType: hard
 
@@ -32016,12 +32014,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react@npm:^18.2.0":
-  version: 18.3.1
-  resolution: "react@npm:18.3.1"
-  dependencies:
-    loose-envify: "npm:^1.1.0"
-  checksum: 10/261137d3f3993eaa2368a83110466fc0e558bc2c7f7ae7ca52d94f03aac945f45146bd85e5f481044db1758a1dbb57879e2fcdd33924e2dde1bdc550ce73f7bf
+"react@npm:^19.0.0":
+  version: 19.2.6
+  resolution: "react@npm:19.2.6"
+  checksum: 10/205f0db93bd6c6485f94471d1c3437ae1d410f322297c76186fe4f658f88a6786bb0805e3cf8f330f24d1daa923b6b610ec63960d2461e9201bca64ca8361db9
   languageName: node
   linkType: hard
 
@@ -33127,12 +33123,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"scheduler@npm:^0.23.2":
-  version: 0.23.2
-  resolution: "scheduler@npm:0.23.2"
-  dependencies:
-    loose-envify: "npm:^1.1.0"
-  checksum: 10/e8d68b89d18d5b028223edf090092846868a765a591944760942b77ea1f69b17235f7e956696efbb62c8130ab90af7e0949bfb8eba7896335507317236966bc9
+"scheduler@npm:^0.27.0":
+  version: 0.27.0
+  resolution: "scheduler@npm:0.27.0"
+  checksum: 10/eab3c3a8373195173e59c147224fc30dabe6dd453f248f5e610e8458512a5a2ee3a06465dc400ebfe6d35c9f5b7f3bb6b2e41c88c86fd177c25a73e7286a1e06
   languageName: node
   linkType: hard