diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6832596..3f8350c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,14 +12,14 @@ cmake_minimum_required(VERSION 3.23.0...3.26.0)
 # Project
 # NOTE: DON'T USE TRAILING ZEROS IN VERSIONS
 project(Squish
-    VERSION 1.15.1.2
+    VERSION 1.15.1.3
     LANGUAGES CXX
     DESCRIPTION "S3TC/DXT compliant image compression"
 )
 
 # Get helper scripts
 include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/FetchOBCMake.cmake)
-fetch_ob_cmake("v0.3.5")
+fetch_ob_cmake("v0.3.7")
 
 # Initialize project according to standard rules
 include(OB/Project)
diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 0581da0..2fa2521 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -42,33 +42,32 @@ ob_add_standard_library(${LIB_TARGET_NAME}
         BASE_NAME "${PROJECT_NAME_UC}"
         PATH "${PROJECT_NAME_LC}/${PROJECT_NAME_LC}_export.h"
     OUTPUT_NAME "${lib_output_name}"
-    HEADERS_PRIVATE
-        alpha.h
-        clusterfit.h
-        colourblock.h
-        colourfit.h
-        colourset.h
-        maths.h
-        rangefit.h
-        simd.h
-        simd_float.h
-        simd_sse.h
-        simd_ve.h
-        singlecolourfit.h
-        singlecolourlookup.inl
     HEADERS_API
         COMMON "${PROJECT_NAME_LC}"
         FILES
             squish.h
     IMPLEMENTATION
+        alpha.h
         alpha.cpp
+        clusterfit.h
         clusterfit.cpp
+        colourblock.h
         colourblock.cpp
+        colourfit.h
         colourfit.cpp
+        colourset.h
         colourset.cpp
+        maths.h
         maths.cpp
+        rangefit.h
         rangefit.cpp
+        simd.h
+        simd_float.h
+        simd_sse.h
+        simd_ve.h
+        singlecolourfit.h
         singlecolourfit.cpp
+        singlecolourlookup.inl
         squish.cpp
     LINKS
         PRIVATE ${squish_links}