diff --git a/UGemini/Packages/com.uralstech.ugemini/Documentation~/APIReferenceManual.pdf b/UGemini/Packages/com.uralstech.ugemini/Documentation~/APIReferenceManual.pdf
index 7b15781..965b543 100644
Binary files a/UGemini/Packages/com.uralstech.ugemini/Documentation~/APIReferenceManual.pdf and b/UGemini/Packages/com.uralstech.ugemini/Documentation~/APIReferenceManual.pdf differ
diff --git a/UGemini/Packages/com.uralstech.ugemini/Documentation~/Documentation.pdf b/UGemini/Packages/com.uralstech.ugemini/Documentation~/Documentation.pdf
index f73def8..c446cb1 100644
Binary files a/UGemini/Packages/com.uralstech.ugemini/Documentation~/Documentation.pdf and b/UGemini/Packages/com.uralstech.ugemini/Documentation~/Documentation.pdf differ
diff --git a/UGemini/Packages/com.uralstech.ugemini/package.json b/UGemini/Packages/com.uralstech.ugemini/package.json
index 51e3fec..7d77a41 100644
--- a/UGemini/Packages/com.uralstech.ugemini/package.json
+++ b/UGemini/Packages/com.uralstech.ugemini/package.json
@@ -9,7 +9,7 @@
     "AI",
     "Integration"
   ],
-  "version": "2.1.0-preview.3",
+  "version": "2.1.0-preview.4",
   "unity": "2022.3",
   "hideInEditor": false,
   "documentationUrl": "https://github.com/Uralstech/UGemini/blob/master/UGemini/Packages/com.uralstech.ugemini/Documentation~/README.md",