--- a/cmake/dependencies.cmake
+++ b/cmake/dependencies.cmake
@@ -3,11 +3,8 @@
 ####################################
 
 find_package(Boost COMPONENTS
-  date_time
   filesystem
   iostreams
-  regex
-  system
   thread
   REQUIRED
 )
--- a/src/contrib/CMakeLists.txt
+++ b/src/contrib/CMakeLists.txt
@@ -63,11 +63,8 @@ target_include_directories(lucene++-cont
 ####################################
 target_link_libraries(lucene++-contrib
     Boost::boost
-    Boost::date_time
     Boost::filesystem
     Boost::iostreams
-    Boost::regex
-    Boost::system
     Boost::thread
     ZLIB::ZLIB
     lucene++::lucene++)
--- a/src/core/CMakeLists.txt
+++ b/src/core/CMakeLists.txt
@@ -53,11 +53,8 @@ target_include_directories(lucene++
 ####################################
 target_link_libraries(lucene++
     Boost::boost
-    Boost::date_time
     Boost::filesystem
     Boost::iostreams
-    Boost::regex
-    Boost::system
     Boost::thread
     ZLIB::ZLIB
 )
--- a/src/demo/deletefiles/CMakeLists.txt
+++ b/src/demo/deletefiles/CMakeLists.txt
@@ -34,11 +34,8 @@ target_include_directories(deletefiles
 target_link_libraries(deletefiles
   PRIVATE
     Boost::boost
-    Boost::date_time
     Boost::filesystem
     Boost::iostreams
-    Boost::regex
-    Boost::system
     Boost::thread
     ZLIB::ZLIB
     lucene++::lucene++
--- a/src/demo/indexfiles/CMakeLists.txt
+++ b/src/demo/indexfiles/CMakeLists.txt
@@ -35,11 +35,8 @@ target_include_directories(indexfiles
 target_link_libraries(indexfiles
   PRIVATE
     Boost::boost
-    Boost::date_time
     Boost::filesystem
     Boost::iostreams
-    Boost::regex
-    Boost::system
     Boost::thread
     ZLIB::ZLIB
     lucene++::lucene++
--- a/src/demo/searchfiles/CMakeLists.txt
+++ b/src/demo/searchfiles/CMakeLists.txt
@@ -34,11 +34,8 @@ target_include_directories(searchfiles
 target_link_libraries(searchfiles
   PRIVATE
     Boost::boost
-    Boost::date_time
     Boost::filesystem
     Boost::iostreams
-    Boost::regex
-    Boost::system
     Boost::thread
     ZLIB::ZLIB
     lucene++::lucene++
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -54,11 +54,8 @@ target_include_directories(lucene++-test
 target_link_libraries(lucene++-tester
   PRIVATE
     Boost::boost
-    Boost::date_time
     Boost::filesystem
     Boost::iostreams
-    Boost::regex
-    Boost::system
     Boost::thread
     ZLIB::ZLIB
     gtest_main
