diff --git a/CHANGELOG.md b/CHANGELOG.md
index 014a6e1..ddc2884 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to the Docker DX extension will be documented in this file.
 
+## [Unreleased]
+
+### Fixed
+
+- fix Dockerfile Language Server crash with tabbed heredoc delimiters ([#171](https://github.com/docker/vscode-extension/issues/171))
+
 ## [0.13.0] - 2025-07-17
 
 ### Added
diff --git a/package-lock.json b/package-lock.json
index b55072a..0e4d6b1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,8 +10,8 @@
       "license": "Apache-2.0",
       "dependencies": {
         "@bugsnag/js": "~8.2.0",
-        "dockerfile-ast": "0.7.0",
-        "dockerfile-language-server-nodejs": "0.14.0",
+        "dockerfile-ast": "0.7.1",
+        "dockerfile-language-server-nodejs": "0.14.1",
         "vscode-languageclient": "9.0.1"
       },
       "devDependencies": {
@@ -2880,9 +2880,9 @@
       }
     },
     "node_modules/dockerfile-ast": {
-      "version": "0.7.0",
-      "resolved": "https://registry.npmjs.org/dockerfile-ast/-/dockerfile-ast-0.7.0.tgz",
-      "integrity": "sha512-HYpjuL0IEC2lYflTpWD0RLNSZYhQxLwYRYsoEjnCP7nu/OlFx1BVrU6X/Y8ETVsa2hojhG2OTJVxleH5Wrlq+Q==",
+      "version": "0.7.1",
+      "resolved": "https://registry.npmjs.org/dockerfile-ast/-/dockerfile-ast-0.7.1.tgz",
+      "integrity": "sha512-oX/A4I0EhSkGqrFv0YuvPkBUSYp1XiY8O8zAKc8Djglx8ocz+JfOr8gP0ryRMC2myqvDLagmnZaU9ot1vG2ijw==",
       "license": "MIT",
       "dependencies": {
         "vscode-languageserver-textdocument": "^1.0.8",
@@ -2893,13 +2893,13 @@
       }
     },
     "node_modules/dockerfile-language-server-nodejs": {
-      "version": "0.14.0",
-      "resolved": "https://registry.npmjs.org/dockerfile-language-server-nodejs/-/dockerfile-language-server-nodejs-0.14.0.tgz",
-      "integrity": "sha512-zbHDuaVHJrgnInOp+bGnMENikCDNGdEad8ro7WndQLGdRKjMC6Gndw2UKTv4WVlJTeAzwp8cOiu1VHkB4nmGgg==",
+      "version": "0.14.1",
+      "resolved": "https://registry.npmjs.org/dockerfile-language-server-nodejs/-/dockerfile-language-server-nodejs-0.14.1.tgz",
+      "integrity": "sha512-50bvRWmAemwJ9VJD2LIQYiKHyL1pW5WoA1Q7keJ4wT+fCGCVxz59kIJY3GXnnlTSXHh9niv3Wc4pFtmXfmILMg==",
       "license": "MIT",
       "dependencies": {
-        "dockerfile-language-service": "0.15.0",
-        "dockerfile-utils": "0.16.2",
+        "dockerfile-language-service": "0.15.1",
+        "dockerfile-utils": "0.16.3",
         "vscode-languageserver": "~8.0.0",
         "vscode-languageserver-textdocument": "~1.0.8"
       },
@@ -2911,13 +2911,13 @@
       }
     },
     "node_modules/dockerfile-language-service": {
-      "version": "0.15.0",
-      "resolved": "https://registry.npmjs.org/dockerfile-language-service/-/dockerfile-language-service-0.15.0.tgz",
-      "integrity": "sha512-DvfabBrOQWhPzFtO6GvuEyv4ojdh3sr7+0uPc+TM+azJRrd7+zWvf6F8/AFVfmd2Kvdl9nvikmKIwSLEp0Wowg==",
+      "version": "0.15.1",
+      "resolved": "https://registry.npmjs.org/dockerfile-language-service/-/dockerfile-language-service-0.15.1.tgz",
+      "integrity": "sha512-0iQBvt/3u8x6ZgYag7QyYPSY2M6Hfn0zB2soywAFZ5THX/13FGk+Vmksqw+a1l+uPDiA+yV7trUedKQ5R0A2aA==",
       "license": "MIT",
       "dependencies": {
-        "dockerfile-ast": "0.7.0",
-        "dockerfile-utils": "0.16.2",
+        "dockerfile-ast": "0.7.1",
+        "dockerfile-utils": "0.16.3",
         "vscode-languageserver-textdocument": "1.0.8",
         "vscode-languageserver-types": "3.17.3"
       },
@@ -2938,12 +2938,12 @@
       "license": "MIT"
     },
     "node_modules/dockerfile-utils": {
-      "version": "0.16.2",
-      "resolved": "https://registry.npmjs.org/dockerfile-utils/-/dockerfile-utils-0.16.2.tgz",
-      "integrity": "sha512-0BHCYRYm5uk/xdL6jv1vLDxJ+FY812sQumRMkLB33f4FRB9VZsDk6ckUeSWlYOWHP9/VhmM0colmpXT/j2OTzA==",
+      "version": "0.16.3",
+      "resolved": "https://registry.npmjs.org/dockerfile-utils/-/dockerfile-utils-0.16.3.tgz",
+      "integrity": "sha512-BslaqRR6PzCnhu+toDbkVAjq0B0CEgrCltk+enJ/xwCmvAHB1QqpO9QhXVIzMg/iSuD4tzS0Ex9n4Ik5ffI7pA==",
       "license": "MIT",
       "dependencies": {
-        "dockerfile-ast": "0.7.0",
+        "dockerfile-ast": "0.7.1",
         "vscode-languageserver-textdocument": "^1.0.8",
         "vscode-languageserver-types": "^3.17.3"
       },
diff --git a/package.json b/package.json
index 457e78e..850b5c3 100644
--- a/package.json
+++ b/package.json
@@ -251,8 +251,8 @@
   },
   "dependencies": {
     "@bugsnag/js": "~8.2.0",
-    "dockerfile-ast": "0.7.0",
-    "dockerfile-language-server-nodejs": "0.14.0",
+    "dockerfile-ast": "0.7.1",
+    "dockerfile-language-server-nodejs": "0.14.1",
     "vscode-languageclient": "9.0.1"
   },
   "devDependencies": {