diff --git a/Shaders/ShaderLibrary - DepthOnlyPass.hlsl b/Shaders/ShaderLibrary - DepthOnlyPass.hlsl
index f3fee58..5df0d79 100644
--- a/Shaders/ShaderLibrary - DepthOnlyPass.hlsl	
+++ b/Shaders/ShaderLibrary - DepthOnlyPass.hlsl	
@@ -7,6 +7,10 @@
 
 #endif
 
+#if UNITY_VERSION >= 201930
 #include "Packages/com.unity.render-pipelines.universal/Shaders/DepthOnlyPass.hlsl"
+#else
+#include "Packages/com.unity.render-pipelines.lightweight/Shaders/DepthOnlyPass.hlsl"
+#endif
 
 #endif
diff --git a/Shaders/ShaderLibrary - Input.hlsl b/Shaders/ShaderLibrary - Input.hlsl
index 57df698..f3b5f26 100644
--- a/Shaders/ShaderLibrary - Input.hlsl	
+++ b/Shaders/ShaderLibrary - Input.hlsl	
@@ -1,7 +1,11 @@
 #ifndef LWRPSHADRES_SHADERLIBRARY_INPUT
 #define LWRPSHADRES_SHADERLIBRARY_INPUT
 
+#if UNITY_VERSION >= 201930
 #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Core.hlsl"
+#else
+#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Core.hlsl"
+#endif
 
 #ifndef NO_MAIN_TEXTURE
 
diff --git a/Shaders/ShaderLibrary - Lighting.hlsl b/Shaders/ShaderLibrary - Lighting.hlsl
index 2307711..9418748 100644
--- a/Shaders/ShaderLibrary - Lighting.hlsl	
+++ b/Shaders/ShaderLibrary - Lighting.hlsl	
@@ -1,7 +1,11 @@
 #ifndef LWRPSHADRES_SHADERLIBRARY_LIGHTING
 #define LWRPSHADRES_SHADERLIBRARY_LIGHTING
 
+#if UNITY_VERSION >= 201930
 #include "Packages/com.unity.render-pipelines.universal/ShaderLibrary/Lighting.hlsl"
+#else
+#include "Packages/com.unity.render-pipelines.lightweight/ShaderLibrary/Lighting.hlsl"
+#endif
 
 float4 ComputeShadowCoord(float3 ws, float4 cs)
 {
diff --git a/Shaders/ShaderLibrary - ShadowPass.hlsl b/Shaders/ShaderLibrary - ShadowPass.hlsl
index 2ce04e6..324eac8 100644
--- a/Shaders/ShaderLibrary - ShadowPass.hlsl	
+++ b/Shaders/ShaderLibrary - ShadowPass.hlsl	
@@ -7,6 +7,10 @@
 
 #endif
 
+#if UNITY_VERSION >= 201930
 #include "Packages/com.unity.render-pipelines.universal/Shaders/ShadowCasterPass.hlsl"
+#else
+#include "Packages/com.unity.render-pipelines.lightweight/Shaders/ShadowCasterPass.hlsl"
+#endif
 
 #endif