diff --git a/cmake/igl/modules/copyleft/cgal.cmake b/cmake/igl/modules/copyleft/cgal.cmake
index f6abe8c..e3aa831 100644
--- a/cmake/igl/modules/copyleft/cgal.cmake
+++ b/cmake/igl/modules/copyleft/cgal.cmake
@@ -14,7 +14,7 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/copyleft/cgal/*.cpp")
 igl_target_sources(igl_copyleft_cgal ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(cgal)
+find_package(CGAL CONFIG REQUIRED COMPONENTS Core)
 igl_include(copyleft core)
 target_link_libraries(igl_copyleft_cgal ${IGL_SCOPE}
     igl::core
diff --git a/cmake/igl/modules/core.cmake b/cmake/igl/modules/core.cmake
index 2aefcd6..137d30b 100644
--- a/cmake/igl/modules/core.cmake
+++ b/cmake/igl/modules/core.cmake
@@ -20,7 +20,7 @@ igl_target_sources(igl_core ${INC_FILES} ${SRC_FILES})
 igl_install(igl_core ${INC_FILES} ${SRC_FILES})
 
 # 5. Dependencies
-include(eigen)
+find_package(Eigen3 CONFIG REQUIRED)
 find_package(Threads REQUIRED)
 target_link_libraries(igl_core ${IGL_SCOPE}
     Eigen3::Eigen
diff --git a/cmake/igl/modules/embree.cmake b/cmake/igl/modules/embree.cmake
index 6f22319..7f333b0 100644
--- a/cmake/igl/modules/embree.cmake
+++ b/cmake/igl/modules/embree.cmake
@@ -14,7 +14,8 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/embree/*.cpp")
 igl_target_sources(igl_embree ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(embree)
+find_package(embree CONFIG REQUIRED)
+add_library(embree::embree ALIAS embree)
 target_link_libraries(igl_embree ${IGL_SCOPE}
     igl::core
     embree::embree
diff --git a/cmake/igl/modules/glfw.cmake b/cmake/igl/modules/glfw.cmake
index 79c2126..2da8b0a 100644
--- a/cmake/igl/modules/glfw.cmake
+++ b/cmake/igl/modules/glfw.cmake
@@ -14,7 +14,8 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/opengl/glfw/*.cpp")
 igl_target_sources(igl_glfw ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(glfw)
+find_package(glfw3 CONFIG REQUIRED)
+add_library(glfw::glfw ALIAS glfw)
 igl_include(opengl)
 target_link_libraries(igl_glfw ${IGL_SCOPE}
     igl::core
diff --git a/cmake/igl/modules/imgui.cmake b/cmake/igl/modules/imgui.cmake
index d7ffb9d..f331854 100644
--- a/cmake/igl/modules/imgui.cmake
+++ b/cmake/igl/modules/imgui.cmake
@@ -14,14 +14,12 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/opengl/glfw/imgui/*.cpp")
 igl_target_sources(igl_imgui ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(imgui)
-include(imguizmo)
-include(libigl_imgui_fonts)
+find_package(imgui CONFIG REQUIRED)
+find_package(imguizmo CONFIG REQUIRED)
 igl_include(glfw)
 target_link_libraries(igl_imgui ${IGL_SCOPE}
     igl::core
     igl::glfw
     imgui::imgui
     imguizmo::imguizmo
-    igl::imgui_fonts
 )
diff --git a/cmake/igl/modules/opengl.cmake b/cmake/igl/modules/opengl.cmake
index 4580c03..dfadb38 100644
--- a/cmake/igl/modules/opengl.cmake
+++ b/cmake/igl/modules/opengl.cmake
@@ -14,7 +14,7 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/opengl/*.cpp")
 igl_target_sources(igl_opengl ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(glad)
+find_package(glad CONFIG REQUIRED)
 find_package(OpenGL REQUIRED OPTIONAL_COMPONENTS OpenGL)
 target_link_libraries(igl_opengl ${IGL_SCOPE}
     igl::core
diff --git a/cmake/igl/modules/stb.cmake b/cmake/igl/modules/stb.cmake
index 20607ec..14db8cf 100644
--- a/cmake/igl/modules/stb.cmake
+++ b/cmake/igl/modules/stb.cmake
@@ -21,11 +21,11 @@ endif()
 igl_target_sources(igl_stb ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(stb)
+find_package(Stb REQUIRED)
 target_link_libraries(igl_stb ${IGL_SCOPE}
     igl::core
-    stb::stb
 )
+target_include_directories(igl_stb ${IGL_SCOPE} ${Stb_INCLUDE_DIR})
 
 if(LIBIGL_OPENGL)
   igl_include(opengl)
diff --git a/cmake/igl/modules/xml.cmake b/cmake/igl/modules/xml.cmake
index 3763b77..31ab979 100644
--- a/cmake/igl/modules/xml.cmake
+++ b/cmake/igl/modules/xml.cmake
@@ -14,7 +14,7 @@ file(GLOB SRC_FILES "${libigl_SOURCE_DIR}/include/igl/xml/*.cpp")
 igl_target_sources(igl_xml ${INC_FILES} ${SRC_FILES})
 
 # 4. Dependencies
-include(tinyxml2)
+find_package(tinyxml2 CONFIG REQUIRED)
 target_link_libraries(igl_xml ${IGL_SCOPE}
     igl::core
     tinyxml2::tinyxml2