diff --git a/CHANGELOG.md b/CHANGELOG.md
index b48fe24..75c95a6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# [4.0.0-preview.7](https://github.com/mob-sakai/UIEffect/compare/v4.0.0-preview.6...v4.0.0-preview.7) (2020-05-11)
+
+
+### Bug Fixes
+
+* not working on PS4 ([0f595eb](https://github.com/mob-sakai/UIEffect/commit/0f595eb79197433e166bf74d736d9841b4117011)), closes [#211](https://github.com/mob-sakai/UIEffect/issues/211)
+* Shaders.meta file should be removed ([e9cc165](https://github.com/mob-sakai/UIEffect/commit/e9cc165e2edba572d868d224e42df31666fd4002)), closes [#210](https://github.com/mob-sakai/UIEffect/issues/210)
+
 # [4.0.0-preview.6](https://github.com/mob-sakai/UIEffect/compare/v4.0.0-preview.5...v4.0.0-preview.6) (2020-04-14)
 
 
diff --git a/Resources/UIEffect.cginc b/Resources/UIEffect.cginc
index 697d3c8..eeb2dcf 100644
--- a/Resources/UIEffect.cginc
+++ b/Resources/UIEffect.cginc
@@ -260,7 +260,7 @@ half4 ApplyShinyEffect(half4 color, half2 shinyParam)
 	fixed gloss = param2.x;
 	half normalized = 1 - saturate(abs((nomalizedPos - location) / width));
 	half shinePower = smoothstep(0, soft, normalized);
-	half3 reflectColor = lerp(1, color.rgb * 7, gloss);
+	half3 reflectColor = lerp(fixed3(1,1,1), color.rgb * 7, gloss);
 
 	color.rgb += color.a * (shinePower / 2) * brightness * reflectColor;
 
@@ -282,7 +282,7 @@ half3 HsvToRgb(half3 c) {
 	c = half3(c.x, clamp(c.yz, 0.0, 1.0));
 	half4 K = half4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
 	half3 p = abs(frac(c.xxx + K.xyz) * 6.0 - K.www);
-	return c.z * lerp(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
+	return c.z * lerp(K.xxx, clamp(p.xyz - K.xxx, 0.0, 1.0), c.y);
 }
 
 
diff --git a/Shaders.meta b/Shaders.meta
deleted file mode 100644
index 2c87ba2..0000000
--- a/Shaders.meta
+++ /dev/null
@@ -1,9 +0,0 @@
-fileFormatVersion: 2
-guid: deded9e09f6e644228da395138e4f232
-folderAsset: yes
-timeCreated: 1527743712
-licenseType: Pro
-DefaultImporter:
-  userData: 
-  assetBundleName: 
-  assetBundleVariant: 
diff --git a/package.json b/package.json
index d33f508..0bd5d93 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "com.coffee.ui-effect",
   "displayName": "UIEffect",
   "description": "UIEffect provides visual effect components for Unity UI.\nLet's decorate your UI with effects!",
-  "version": "4.0.0-preview.6",
+  "version": "4.0.0-preview.7",
   "unity": "2017.1",
   "license": "MIT",
   "repository": {