diff --git a/.github/workflows/publish-npm.yml b/.github/workflows/publish-npm.yml
index 3bbefc9..b130dd2 100644
--- a/.github/workflows/publish-npm.yml
+++ b/.github/workflows/publish-npm.yml
@@ -39,3 +39,8 @@ jobs:
           yarn tsn scripts/publish-packages.ts "{ \"paths_released\": \"$PATHS_RELEASED\" }"
         env:
           NPM_TOKEN: ${{ secrets.CAS_PARSER_NPM_TOKEN || secrets.NPM_TOKEN }}
+
+      - name: Upload MCP Server DXT GitHub release asset
+        run: |
+          gh release upload ${{ github.event.release.tag_name }} \
+            packages/mcp-server/cas_parser_node_api.dxt
diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 4c313f9..4918b25 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "1.4.0"
+  ".": "1.4.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index e774627..fda1b9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,19 @@
 # Changelog
 
+## 1.4.1 (2025-09-12)
+
+Full Changelog: [v1.4.0...v1.4.1](https://github.com/CASParser/cas-parser-node/compare/v1.4.0...v1.4.1)
+
+### Bug Fixes
+
+* coerce nullable values to undefined ([5355e4d](https://github.com/CASParser/cas-parser-node/commit/5355e4dc9d5acca9d1c0fbb58539c4106af4d1b0))
+* **mcp:** fix uploading dxt release assets ([a6e483b](https://github.com/CASParser/cas-parser-node/commit/a6e483ba375b7d97278928526ed10b2cc564bfa3))
+
+
+### Chores
+
+* **mcp:** upload dxt as release asset ([334e4d3](https://github.com/CASParser/cas-parser-node/commit/334e4d3dc3124709dc485d968d07fde384d3b23f))
+
 ## 1.4.0 (2025-09-06)
 
 Full Changelog: [v1.3.0...v1.4.0](https://github.com/CASParser/cas-parser-node/compare/v1.3.0...v1.4.0)
diff --git a/package.json b/package.json
index 4171ae7..0f1fb96 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cas-parser-node",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "description": "The official TypeScript library for the Cas Parser API",
   "author": "Cas Parser <sameer@casparser.in>",
   "types": "dist/index.d.ts",
diff --git a/packages/mcp-server/package.json b/packages/mcp-server/package.json
index e901434..40f498d 100644
--- a/packages/mcp-server/package.json
+++ b/packages/mcp-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "cas-parser-node-mcp",
-  "version": "1.4.0",
+  "version": "1.4.1",
   "description": "The official MCP Server for the Cas Parser API",
   "author": "Cas Parser <sameer@casparser.in>",
   "types": "dist/index.d.ts",
diff --git a/packages/mcp-server/src/server.ts b/packages/mcp-server/src/server.ts
index 54b6339..13bcf36 100644
--- a/packages/mcp-server/src/server.ts
+++ b/packages/mcp-server/src/server.ts
@@ -33,7 +33,7 @@ export const newMcpServer = () =>
   new McpServer(
     {
       name: 'cas_parser_node_api',
-      version: '1.4.0',
+      version: '1.4.1',
     },
     { capabilities: { tools: {}, logging: {} } },
   );
diff --git a/src/internal/utils/values.ts b/src/internal/utils/values.ts
index d985c05..7f73efd 100644
--- a/src/internal/utils/values.ts
+++ b/src/internal/utils/values.ts
@@ -76,21 +76,21 @@ export const coerceBoolean = (value: unknown): boolean => {
 };
 
 export const maybeCoerceInteger = (value: unknown): number | undefined => {
-  if (value === undefined) {
+  if (value == null) {
     return undefined;
   }
   return coerceInteger(value);
 };
 
 export const maybeCoerceFloat = (value: unknown): number | undefined => {
-  if (value === undefined) {
+  if (value == null) {
     return undefined;
   }
   return coerceFloat(value);
 };
 
 export const maybeCoerceBoolean = (value: unknown): boolean | undefined => {
-  if (value === undefined) {
+  if (value == null) {
     return undefined;
   }
   return coerceBoolean(value);
diff --git a/src/version.ts b/src/version.ts
index 391e342..45b0c3a 100644
--- a/src/version.ts
+++ b/src/version.ts
@@ -1 +1 @@
-export const VERSION = '1.4.0'; // x-release-please-version
+export const VERSION = '1.4.1'; // x-release-please-version