diff --git a/package-lock.json b/package-lock.json
index 3d80b23..8c56dcb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -32,8 +32,8 @@
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+      "license": "MIT",
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+        "https://github.com/sponsors/ctavan"
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         "@types/node-fetch": "^2.6.4",
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         "form-data-encoder": "1.7.2",
         "formdata-node": "^4.3.2",
-        "node-fetch": "^2.6.7"
+        "node-fetch": "^2.6.7",
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       "bin": {
         "openai": "bin/cli"
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     "node_modules/openai/node_modules/@types/node": {
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+      "license": "MIT",
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@@ -7234,6 +6981,7 @@
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+      "license": "MIT",
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@@ -7283,6 +7031,7 @@
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+      "license": "MIT",
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@@ -7298,6 +7047,7 @@
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+      "license": "MIT",
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@@ -7310,6 +7060,7 @@
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+      "license": "MIT",
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+      "license": "MIT",
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@@ -9160,7 +8912,8 @@
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+      "integrity": "sha512-JlCMO+ehdEIKqlFxk6IfVoAUVmgz7cU7zD/h9XZ0qzeosSHmUJVOzSQvvYSYWXkFXC+IfLKSIffhv0sVZup6pA==",
+      "license": "MIT"
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@@ -9321,6 +9074,7 @@
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+      "license": "MIT",
       "engines": {
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       }
diff --git a/package.json b/package.json
index 1987d16..2ff407a 100644
--- a/package.json
+++ b/package.json
@@ -66,7 +66,7 @@
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     "json-diff": "1.0.6",
     "jsonpointer": "5.0.1",
-    "langchain": "0.0.170",
+    "langchain": "0.2.6",
     "mammoth": "1.7.1",
     "os": "0.1.2",
     "pdf-parse": "1.1.1",