diff --git a/cmake/exiv2Config.cmake.in b/cmake/exiv2Config.cmake.in
index c9e2eba..ca170e1 100644
--- a/cmake/exiv2Config.cmake.in
+++ b/cmake/exiv2Config.cmake.in
@@ -8,7 +8,15 @@ if(@EXIV2_ENABLE_PNG@) # if(EXIV2_ENABLE_PNG)
 endif()
 
 if(@EXIV2_ENABLE_XMP@) # if(EXIV2_ENABLE_XMP)
-  find_dependency(EXPAT REQUIRED)
+  find_dependency(expat)
+endif()
+
+if(@EXIV2_ENABLE_BMFF@ AND @EXIV2_ENABLE_BROTLI@)
+  find_dependency(unofficial-brotli)
+endif()
+
+if(@EXIV2_ENABLE_INIH@)
+  find_dependency(unofficial-inih)
 endif()
 
 include("${CMAKE_CURRENT_LIST_DIR}/exiv2Export.cmake")
diff --git a/cmake/findDependencies.cmake b/cmake/findDependencies.cmake
index b0897c3..e559666 100644
--- a/cmake/findDependencies.cmake
+++ b/cmake/findDependencies.cmake
@@ -49,7 +49,8 @@ if( EXIV2_ENABLE_PNG )
 endif( )
 
 if( EXIV2_ENABLE_BMFF AND EXIV2_ENABLE_BROTLI )
-    find_package( Brotli REQUIRED )
+    find_package(BROTLI NAMES unofficial-brotli REQUIRED)
+    set(Brotli_LIBRARIES unofficial::brotli::brotlidec)
 endif( )
 
 if( EXIV2_ENABLE_WEBREADY )
@@ -62,7 +63,9 @@ if (EXIV2_ENABLE_XMP AND EXIV2_ENABLE_EXTERNAL_XMP)
     message(FATAL_ERROR "EXIV2_ENABLE_XMP AND EXIV2_ENABLE_EXTERNAL_XMP are mutually exclusive.  You can only choose one of them")
 else()
     if (EXIV2_ENABLE_XMP)
-        find_package(EXPAT REQUIRED)
+        find_package(EXPAT NAMES expat REQUIRED)
+        add_library(EXPAT::EXPAT ALIAS expat::expat)
+        set(EXPAT_LIBRARIES expat::expat)
     elseif (EXIV2_ENABLE_EXTERNAL_XMP)
         find_package(XmpSdk REQUIRED)
     endif ()
@@ -79,7 +82,9 @@ if( ICONV_FOUND )
 endif()
 
 if( EXIV2_ENABLE_INIH )
-  find_package(inih)
+  find_package(unofficial-inih CONFIG REQUIRED)
+  add_library(inih::libinih ALIAS unofficial::inih::libinih)
+  add_library(inih::inireader ALIAS unofficial::inih::inireader)
   message ( "-- inih_INCLUDE_DIRS : " ${inih_INCLUDE_DIRS} )
   message ( "-- inih_LIBRARIES : " ${inih_LIBRARIES} )
   message ( "-- inih_inireader_INCLUDE_DIRS : " ${inih_inireader_INCLUDE_DIRS} )