diff --git a/Assets/UniGLTF/Runtime/UniGLTF/UniGLTFVersion.cs b/Assets/UniGLTF/Runtime/UniGLTF/UniGLTFVersion.cs
index 888483c45..f46c865cf 100644
--- a/Assets/UniGLTF/Runtime/UniGLTF/UniGLTFVersion.cs
+++ b/Assets/UniGLTF/Runtime/UniGLTF/UniGLTFVersion.cs
@@ -5,7 +5,7 @@ namespace UniGLTF
     {
         public const int MAJOR = 2;
         public const int MINOR = 27;
-        public const int PATCH = 0;
-        public const string VERSION = "2.27.0";
+        public const int PATCH = 1;
+        public const string VERSION = "2.27.1";
     }
 }
diff --git a/Assets/UniGLTF/package.json b/Assets/UniGLTF/package.json
index 61249f598..bee1cdbe6 100644
--- a/Assets/UniGLTF/package.json
+++ b/Assets/UniGLTF/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.vrmc.gltf",
-  "version": "0.91.0",
+  "version": "0.91.1",
   "displayName": "UniGLTF",
   "description": "GLTF importer and exporter",
   "unity": "2019.4",
@@ -11,6 +11,6 @@
     "name": "VRM Consortium"
   },
   "dependencies": {
-    "com.vrmc.vrmshaders": "0.91.0"
+    "com.vrmc.vrmshaders": "0.91.1"
   }
 }
\ No newline at end of file
diff --git a/Assets/VRM/Runtime/Format/VRMVersion.cs b/Assets/VRM/Runtime/Format/VRMVersion.cs
index b9e056743..f187fd98b 100644
--- a/Assets/VRM/Runtime/Format/VRMVersion.cs
+++ b/Assets/VRM/Runtime/Format/VRMVersion.cs
@@ -5,7 +5,7 @@ namespace VRM
     {
         public const int MAJOR = 0;
         public const int MINOR = 91;
-        public const int PATCH = 0;
-        public const string VERSION = "0.91.0";
+        public const int PATCH = 1;
+        public const string VERSION = "0.91.1";
     }
 }
diff --git a/Assets/VRM/package.json b/Assets/VRM/package.json
index 7aa17789e..d102f8a76 100644
--- a/Assets/VRM/package.json
+++ b/Assets/VRM/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.vrmc.univrm",
-  "version": "0.91.0",
+  "version": "0.91.1",
   "displayName": "VRM",
   "description": "VRM importer",
   "unity": "2019.4",
@@ -14,8 +14,8 @@
     "name": "VRM Consortium"
   },
   "dependencies": {
-    "com.vrmc.vrmshaders": "0.91.0",
-    "com.vrmc.gltf": "0.91.0"
+    "com.vrmc.vrmshaders": "0.91.1",
+    "com.vrmc.gltf": "0.91.1"
   },
   "samples": [
     {
diff --git a/Assets/VRM10/package.json b/Assets/VRM10/package.json
index 4fe0a9a70..aed97f855 100644
--- a/Assets/VRM10/package.json
+++ b/Assets/VRM10/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.vrmc.vrm",
-  "version": "0.91.0",
+  "version": "0.91.1",
   "displayName": "VRM-1.0β",
   "description": "VRM-1.0β importer",
   "unity": "2019.4",
@@ -14,8 +14,8 @@
     "name": "VRM Consortium"
   },
   "dependencies": {
-    "com.vrmc.vrmshaders": "0.91.0",
-    "com.vrmc.gltf": "0.91.0"
+    "com.vrmc.vrmshaders": "0.91.1",
+    "com.vrmc.gltf": "0.91.1"
   },
   "samples": [
     {
diff --git a/Assets/VRMShaders/package.json b/Assets/VRMShaders/package.json
index af31d5f04..d6dfff522 100644
--- a/Assets/VRMShaders/package.json
+++ b/Assets/VRMShaders/package.json
@@ -1,6 +1,6 @@
 {
   "name": "com.vrmc.vrmshaders",
-  "version": "0.91.0",
+  "version": "0.91.1",
   "displayName": "VRM Shaders",
   "description": "VRM Shaders",
   "unity": "2019.4",