diff --git a/lib/CMakeLists.txt b/lib/CMakeLists.txt
index 7dbfde4..1d244f2 100644
--- a/lib/CMakeLists.txt
+++ b/lib/CMakeLists.txt
@@ -63,7 +63,6 @@ set(nghttp3_SOURCES
   nghttp3_settings.c
   nghttp3_callbacks.c
   nghttp3_ratelim.c
-  sfparse/sfparse.c
 )
 
 set(NGHTTP3_GENERATED_DIR "${CMAKE_CURRENT_BINARY_DIR}/generated")
@@ -85,9 +84,12 @@ install(
   FILES "${NGHTTP3_PROJECT_CONFIG}" "${NGHTTP3_VERSION_CONFIG}"
   DESTINATION "${NGHTTP3_CONFIG_INSTALL_DIR}")
 
+find_package(unofficial-sfparse CONFIG REQUIRED)
+
 # Public shared library
 if(ENABLE_SHARED_LIB)
   add_library(nghttp3 SHARED ${nghttp3_SOURCES})
+  target_link_libraries(nghttp3 PRIVATE unofficial::sfparse::sfparse)
   set_target_properties(nghttp3 PROPERTIES
     COMPILE_FLAGS "${WARNCFLAGS}"
     VERSION ${LT_VERSION} SOVERSION ${LT_SOVERSION}
@@ -106,6 +108,7 @@ endif()
 if(ENABLE_STATIC_LIB)
   # Public static library
   add_library(nghttp3_static STATIC ${nghttp3_SOURCES})
+  target_link_libraries(nghttp3_static PRIVATE unofficial::sfparse::sfparse)
   set_target_properties(nghttp3_static PROPERTIES
     COMPILE_FLAGS "${WARNCFLAGS}"
     VERSION ${LT_VERSION} SOVERSION ${LT_SOVERSION}
diff --git a/lib/libnghttp3.pc.in b/lib/libnghttp3.pc.in
--- a/lib/libnghttp3.pc.in
+++ b/lib/libnghttp3.pc.in
@@ -30,5 +30,6 @@ Name: libnghttp3
 Description: nghttp3 library
 URL: https://github.com/ngtcp2/nghttp3
 Version: @VERSION@
 Libs: -L${libdir} -lnghttp3
+Libs.private: -lsfparse
 Cflags: -I${includedir}
diff --git a/lib/config.cmake.in b/lib/config.cmake.in
index fc691dd..bc991b1 100644
--- a/lib/config.cmake.in
+++ b/lib/config.cmake.in
@@ -1,3 +1,5 @@
 include(CMakeFindDependencyMacro)
 
+find_dependency(unofficial-sfparse)
+
 include("${CMAKE_CURRENT_LIST_DIR}/@NGHTTP3_TARGETS_EXPORT_NAME@.cmake")