diff --git a/services/backend/package.json b/services/backend/package.json
index bbecdbfb..4fc06a89 100644
--- a/services/backend/package.json
+++ b/services/backend/package.json
@@ -31,7 +31,7 @@
   "devDependencies": {
     "@biomejs/biome": "latest",
     "@types/express": "^5.0.6",
-    "@types/node": "^25.9.0",
+    "@types/node": "^26.2.0",
     "@types/pg": "^8.23.1",
     "@types/ws": "^8.18.1",
     "tsx": "^4.22.2",
diff --git a/services/backend/pnpm-lock.yaml b/services/backend/pnpm-lock.yaml
index 90993ba6..5bb9d84d 100644
--- a/services/backend/pnpm-lock.yaml
+++ b/services/backend/pnpm-lock.yaml
@@ -55,8 +55,8 @@ importers:
         specifier: ^5.0.6
         version: 5.0.6
       '@types/node':
-        specifier: ^25.9.0
-        version: 25.9.5
+        specifier: ^26.2.0
+        version: 26.2.0
       '@types/pg':
         specifier: ^8.23.1
         version: 8.23.1
@@ -71,7 +71,7 @@ importers:
         version: 5.9.3
       vitest:
         specifier: latest
-        version: 4.1.11(@opentelemetry/api@1.9.1)(@types/node@25.9.5)(vite@8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1))
+        version: 4.1.11(@opentelemetry/api@1.9.1)(@types/node@26.2.0)(vite@8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1))
 
 packages:
 
@@ -593,8 +593,8 @@ packages:
   '@types/http-errors@2.0.5':
     resolution: {integrity: sha512-r8Tayk8HJnX0FztbZN7oVqGccWgw98T/0neJphO91KkmOzug1KkofZURD4UaD5uH8AqcFLfdPErnBod0u71/qg==}
 
-  '@types/node@25.9.5':
-    resolution: {integrity: sha512-OScDchr2fwuUmWdf4kZ9h7PcJiYDVInhJizG/biAq3cAvqwYktuy/TYGGdZNMtNTFUP7rnb0NU4TUdm82kt4Rg==}
+  '@types/node@26.2.0':
+    resolution: {integrity: sha512-5IviulTZeRNp2vAJ514cc/HUlY5nZ9fCbq9DMyC52BrhFZACo3nI0R7qBxhQmo/d27NFe96ur/b7Wwxklda+kg==}
 
   '@types/pg@8.23.1':
     resolution: {integrity: sha512-fKVHpikPdg4GKks3JuLEhvwSyvwzF23hnabPy6DD8ljVbC7+6J5dQzdv4arV6jqq57djnMgs1HKBxX4P8aBI3A==}
@@ -1399,8 +1399,8 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
-  undici-types@7.24.6:
-    resolution: {integrity: sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==}
+  undici-types@8.3.0:
+    resolution: {integrity: sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==}
 
   unpipe@1.0.0:
     resolution: {integrity: sha512-pjy2bYhSsufwWlKwPc+l3cN7+wuJlK6uz0YdJEOlQDbl6jo/YlPi4mb8agUkVC8BF7V8NuzeyPNqRksA3hztKQ==}
@@ -1906,7 +1906,7 @@ snapshots:
   '@types/body-parser@1.19.6':
     dependencies:
       '@types/connect': 3.4.38
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
 
   '@types/chai@5.2.3':
     dependencies:
@@ -1915,7 +1915,7 @@ snapshots:
 
   '@types/connect@3.4.38':
     dependencies:
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
 
   '@types/deep-eql@4.0.2': {}
 
@@ -1923,7 +1923,7 @@ snapshots:
 
   '@types/express-serve-static-core@5.1.2':
     dependencies:
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
       '@types/qs': 6.15.1
       '@types/range-parser': 1.2.7
       '@types/send': 1.2.1
@@ -1936,13 +1936,13 @@ snapshots:
 
   '@types/http-errors@2.0.5': {}
 
-  '@types/node@25.9.5':
+  '@types/node@26.2.0':
     dependencies:
-      undici-types: 7.24.6
+      undici-types: 8.3.0
 
   '@types/pg@8.23.1':
     dependencies:
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
       pg-protocol: 1.16.0
       pg-types: 2.2.0
 
@@ -1952,16 +1952,16 @@ snapshots:
 
   '@types/send@1.2.1':
     dependencies:
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
 
   '@types/serve-static@2.2.0':
     dependencies:
       '@types/http-errors': 2.0.5
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
 
   '@types/ws@8.18.1':
     dependencies:
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
 
   '@vitest/expect@4.1.11':
     dependencies:
@@ -1972,13 +1972,13 @@ snapshots:
       chai: 6.2.2
       tinyrainbow: 3.1.1
 
-  '@vitest/mocker@4.1.11(vite@8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1))':
+  '@vitest/mocker@4.1.11(vite@8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1))':
     dependencies:
       '@vitest/spy': 4.1.11
       estree-walker: 3.0.3
       magic-string: 0.30.21
     optionalDependencies:
-      vite: 8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1)
+      vite: 8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1)
 
   '@vitest/pretty-format@4.1.11':
     dependencies:
@@ -2671,13 +2671,13 @@ snapshots:
 
   typescript@5.9.3: {}
 
-  undici-types@7.24.6: {}
+  undici-types@8.3.0: {}
 
   unpipe@1.0.0: {}
 
   vary@1.1.2: {}
 
-  vite@8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1):
+  vite@8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1):
     dependencies:
       lightningcss: 1.33.0
       picomatch: 4.0.5
@@ -2685,15 +2685,15 @@ snapshots:
       rolldown: 1.2.1
       tinyglobby: 0.2.17
     optionalDependencies:
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
       esbuild: 0.28.1
       fsevents: 2.3.3
       tsx: 4.23.1
 
-  vitest@4.1.11(@opentelemetry/api@1.9.1)(@types/node@25.9.5)(vite@8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1)):
+  vitest@4.1.11(@opentelemetry/api@1.9.1)(@types/node@26.2.0)(vite@8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1)):
     dependencies:
       '@vitest/expect': 4.1.11
-      '@vitest/mocker': 4.1.11(vite@8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1))
+      '@vitest/mocker': 4.1.11(vite@8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1))
       '@vitest/pretty-format': 4.1.11
       '@vitest/runner': 4.1.11
       '@vitest/snapshot': 4.1.11
@@ -2710,11 +2710,11 @@ snapshots:
       tinyexec: 1.2.4
       tinyglobby: 0.2.17
       tinyrainbow: 3.1.1
-      vite: 8.2.0(@types/node@25.9.5)(esbuild@0.28.1)(tsx@4.23.1)
+      vite: 8.2.0(@types/node@26.2.0)(esbuild@0.28.1)(tsx@4.23.1)
       why-is-node-running: 2.3.0
     optionalDependencies:
       '@opentelemetry/api': 1.9.1
-      '@types/node': 25.9.5
+      '@types/node': 26.2.0
     transitivePeerDependencies:
       - msw