diff --git a/vtm/resources/assets/shaders/base_shader.glsl b/vtm/resources/assets/shaders/base_shader.glsl
index 9bf76a97..4f4dbecd 100644
--- a/vtm/resources/assets/shaders/base_shader.glsl
+++ b/vtm/resources/assets/shaders/base_shader.glsl
@@ -1,5 +1,5 @@
 #ifdef GLES
-precision mediump float;
+precision highp float;
 #endif
 uniform mat4 u_mvp;
 attribute vec4 a_pos;
diff --git a/vtm/resources/assets/shaders/extrusion_layer_ext.glsl b/vtm/resources/assets/shaders/extrusion_layer_ext.glsl
index 4ae42668..0961a10a 100644
--- a/vtm/resources/assets/shaders/extrusion_layer_ext.glsl
+++ b/vtm/resources/assets/shaders/extrusion_layer_ext.glsl
@@ -1,3 +1,6 @@
+#ifdef GLES
+precision highp float;
+#endif
 uniform mat4 u_mvp;
 uniform vec4 u_color[4];
 uniform int u_mode;
diff --git a/vtm/resources/assets/shaders/extrusion_layer_mesh.glsl b/vtm/resources/assets/shaders/extrusion_layer_mesh.glsl
index 34db13b1..4c2f787d 100644
--- a/vtm/resources/assets/shaders/extrusion_layer_mesh.glsl
+++ b/vtm/resources/assets/shaders/extrusion_layer_mesh.glsl
@@ -1,3 +1,6 @@
+#ifdef GLES
+precision highp float;
+#endif
 uniform mat4 u_mvp;
 uniform vec4 u_color;
 uniform float u_alpha;
diff --git a/vtm/resources/assets/shaders/linetex_layer.glsl b/vtm/resources/assets/shaders/linetex_layer.glsl
index 22ae4d52..f72b6c67 100644
--- a/vtm/resources/assets/shaders/linetex_layer.glsl
+++ b/vtm/resources/assets/shaders/linetex_layer.glsl
@@ -1,5 +1,5 @@
 #ifdef GLES
-precision mediump float;
+precision highp float;
 #endif
 uniform mat4 u_mvp;
 uniform vec4 u_color;
diff --git a/vtm/resources/assets/shaders/mesh_layer_2D.glsl b/vtm/resources/assets/shaders/mesh_layer_2D.glsl
index ebccc3c9..4a7e412d 100644
--- a/vtm/resources/assets/shaders/mesh_layer_2D.glsl
+++ b/vtm/resources/assets/shaders/mesh_layer_2D.glsl
@@ -1,5 +1,5 @@
 #ifdef GLES
-precision mediump float;
+precision highp float;
 #endif
 uniform mat4 u_mvp;
 uniform float u_height;
diff --git a/vtm/resources/assets/shaders/poly_texture.glsl b/vtm/resources/assets/shaders/poly_texture.glsl
index 01c5d144..bf261399 100644
--- a/vtm/resources/assets/shaders/poly_texture.glsl
+++ b/vtm/resources/assets/shaders/poly_texture.glsl
@@ -1,4 +1,6 @@
-precision mediump float;
+#ifdef GLES
+precision highp float;
+#endif
 uniform mat4 u_mvp;
 uniform vec2 u_scale;
 attribute vec4 a_pos;
@@ -11,7 +13,9 @@ void main() {
 }
 
 §
+#ifdef GLES
 precision mediump float;
+#endif
 uniform vec4 u_color;
 uniform sampler2D tex;
 uniform vec2 u_scale;
diff --git a/vtm/resources/assets/shaders/polygon_layer_tex.glsl b/vtm/resources/assets/shaders/polygon_layer_tex.glsl
index 565d737d..4ae43ec7 100644
--- a/vtm/resources/assets/shaders/polygon_layer_tex.glsl
+++ b/vtm/resources/assets/shaders/polygon_layer_tex.glsl
@@ -1,5 +1,5 @@
 #ifdef GLES
-precision mediump float;
+precision highp float;
 #endif
 uniform mat4 u_mvp;
 uniform vec2 u_scale;
diff --git a/vtm/resources/assets/shaders/texture_alpha.glsl b/vtm/resources/assets/shaders/texture_alpha.glsl
index a40d4464..3a44857f 100644
--- a/vtm/resources/assets/shaders/texture_alpha.glsl
+++ b/vtm/resources/assets/shaders/texture_alpha.glsl
@@ -1,5 +1,5 @@
 #ifdef GLES
-precision mediump float;
+precision highp float;
 #endif
 attribute vec2 vertex;
 attribute vec2 tex_coord;