diff --git a/changelog.md b/changelog.md
index 5f623c5..02e3637 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## 2026-03-05 - 11.0.44 - fix(dev-deps)
+bump @git.zone/tsbuild devDependency to ^4.2.1
+
+- Updated package.json devDependency @git.zone/tsbuild from ^4.2.0 to ^4.2.1
+- Non-breaking patch update for build tool dependency
+
 ## 2026-03-05 - 11.0.43 - fix(dcrouter)
 no changes detected; nothing to release
 
diff --git a/package.json b/package.json
index 9293437..349fbb1 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "watch": "tswatch"
   },
   "devDependencies": {
-    "@git.zone/tsbuild": "^4.2.0",
+    "@git.zone/tsbuild": "^4.2.1",
     "@git.zone/tsbundle": "^2.9.0",
     "@git.zone/tsrun": "^2.0.1",
     "@git.zone/tstest": "^3.2.0",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index f83fee5..5a1b3e2 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -115,8 +115,8 @@ importers:
         version: 13.0.0
     devDependencies:
       '@git.zone/tsbuild':
-        specifier: ^4.2.0
-        version: 4.2.0
+        specifier: ^4.2.1
+        version: 4.2.1
       '@git.zone/tsbundle':
         specifier: ^2.9.0
         version: 2.9.0
@@ -538,8 +538,8 @@ packages:
     resolution: {integrity: sha512-YTVITFGN0/24PxzXrwqCgnyd7njDuzp5ZvaCx5nq/jg55kUYd94Nj8UTchBdBofi/L0nwRfjGOg0E41d2u9T1w==}
     engines: {node: '>=6'}
 
-  '@git.zone/tsbuild@4.2.0':
-    resolution: {integrity: sha512-gLmPImJ/dsikRhSyyM1cRWszYTZof7pXNVo06kRdpoJY6JeMLlk5JRZP9MJt2+ur+8LNsuvd9xGCqtLTVmFMzQ==}
+  '@git.zone/tsbuild@4.2.1':
+    resolution: {integrity: sha512-GXQR3GSouPo1NXPS8Q53G3G9FpmM5OLoghpSWsNaGNS6UPYNVO5o6SE20oeyXtkjzHvG084F9/ZVlum51vcCUg==}
     hasBin: true
 
   '@git.zone/tsbundle@2.9.0':
@@ -4860,7 +4860,7 @@ snapshots:
     dependencies:
       '@fortawesome/fontawesome-common-types': 7.2.0
 
-  '@git.zone/tsbuild@4.2.0':
+  '@git.zone/tsbuild@4.2.1':
     dependencies:
       '@git.zone/tspublish': 1.11.2
       '@push.rocks/early': 4.0.4
diff --git a/ts/00_commitinfo_data.ts b/ts/00_commitinfo_data.ts
index 6908e36..e882c4f 100644
--- a/ts/00_commitinfo_data.ts
+++ b/ts/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@serve.zone/dcrouter',
-  version: '11.0.43',
+  version: '11.0.44',
   description: 'A multifaceted routing service handling mail and SMS delivery functions.'
 }
diff --git a/ts_web/00_commitinfo_data.ts b/ts_web/00_commitinfo_data.ts
index 6908e36..e882c4f 100644
--- a/ts_web/00_commitinfo_data.ts
+++ b/ts_web/00_commitinfo_data.ts
@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@serve.zone/dcrouter',
-  version: '11.0.43',
+  version: '11.0.44',
   description: 'A multifaceted routing service handling mail and SMS delivery functions.'
 }