diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3bb8586..5b1ea13 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -30,6 +30,7 @@ else()
 endif()
 
 # options
+set(OPENDAQ_ENABLE_UNITY_LIBS ON CACHE BOOL "Unity builds for libraries")
 opendaq_setup_common_build_options()
 opendaq_setup_project_specific_build_options(${REPO_OPTION_PREFIX})
 option(${REPO_OPTION_PREFIX}_ENABLE_EXAMPLE_APP "Enable ${REPO_NAME} example applications" ${PROJECT_IS_TOP_LEVEL})
diff --git a/changelog/changelog b/changelog/changelog
index 09c94c8..5e7ef71 100644
--- a/changelog/changelog
+++ b/changelog/changelog
@@ -10,3 +10,4 @@
 
 - [#3](https://github.com/openDAQ/LTStreamingModulesLegacy/pull/3) Import commit history from openDAQ SDK.
 - [#4](https://github.com/openDAQ/LTStreamingModulesLegacy/pull/4) Project initial version.
+- [#17](https://github.com/openDAQ/LTStreamingModulesLegacy/pull/17) Precompiled headers and unity builds through opendaq-cmake-utils v1.1.0.
diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 02fc70b..1207a2a 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -8,7 +8,7 @@ include(FetchContent)
 FetchContent_Declare(
     opendaq-cmake-utils
     GIT_REPOSITORY https://github.com/openDAQ/opendaq-cmake-utils.git
-    GIT_TAG        v1.0.1
+    GIT_TAG        v1.1.0
     GIT_PROGRESS   ON
 )
 FetchContent_MakeAvailable(opendaq-cmake-utils)
diff --git a/modules/websocket_streaming_client_module/src/CMakeLists.txt b/modules/websocket_streaming_client_module/src/CMakeLists.txt
index dbf3df3..fe2f03f 100644
--- a/modules/websocket_streaming_client_module/src/CMakeLists.txt
+++ b/modules/websocket_streaming_client_module/src/CMakeLists.txt
@@ -29,6 +29,8 @@ add_library(${LIB_NAME} SHARED ${SRC_Include}
 )
 add_library(${OPENDAQ_SDK_TARGET_NAMESPACE}::${LIB_NAME} ALIAS ${LIB_NAME})
 
+opendaq_target_pch(${LIB_NAME} <opendaq/opendaq.h>)
+
 if (MSVC)
     target_compile_options(${LIB_NAME} PRIVATE /bigobj)
 endif()
diff --git a/modules/websocket_streaming_client_module/tests/CMakeLists.txt b/modules/websocket_streaming_client_module/tests/CMakeLists.txt
index 108b503..94ce6f4 100644
--- a/modules/websocket_streaming_client_module/tests/CMakeLists.txt
+++ b/modules/websocket_streaming_client_module/tests/CMakeLists.txt
@@ -12,6 +12,8 @@ target_link_libraries(${TEST_APP} PRIVATE ${OPENDAQ_SDK_TARGET_NAMESPACE}::opend
                                           ${OPENDAQ_SDK_TARGET_NAMESPACE}::${MODULE_NAME}
 )
 
+opendaq_target_pch(${TEST_APP} <opendaq/opendaq.h> <gtest/gtest.h>)
+
 add_test(NAME ${TEST_APP}
          COMMAND $<TARGET_FILE_NAME:${TEST_APP}>
          WORKING_DIRECTORY $<TARGET_FILE_DIR:${TEST_APP}>
diff --git a/modules/websocket_streaming_server_module/src/CMakeLists.txt b/modules/websocket_streaming_server_module/src/CMakeLists.txt
index 021ef46..5f9508b 100644
--- a/modules/websocket_streaming_server_module/src/CMakeLists.txt
+++ b/modules/websocket_streaming_server_module/src/CMakeLists.txt
@@ -34,6 +34,8 @@ add_library(${LIB_NAME} SHARED ${SRC_Include}
 
 add_library(${OPENDAQ_SDK_TARGET_NAMESPACE}::${LIB_NAME} ALIAS ${LIB_NAME})
 
+opendaq_target_pch(${LIB_NAME} <opendaq/opendaq.h>)
+
 if (MSVC)
     target_compile_options(${LIB_NAME} PRIVATE /bigobj)
 endif()
diff --git a/modules/websocket_streaming_server_module/tests/CMakeLists.txt b/modules/websocket_streaming_server_module/tests/CMakeLists.txt
index 21de9c6..8f670fc 100644
--- a/modules/websocket_streaming_server_module/tests/CMakeLists.txt
+++ b/modules/websocket_streaming_server_module/tests/CMakeLists.txt
@@ -12,6 +12,8 @@ target_link_libraries(${TEST_APP} PRIVATE ${OPENDAQ_SDK_TARGET_NAMESPACE}::opend
                                           ${OPENDAQ_SDK_TARGET_NAMESPACE}::${MODULE_NAME}
 )
 
+opendaq_target_pch(${TEST_APP} <opendaq/opendaq.h> <gtest/gtest.h>)
+
 add_test(NAME ${TEST_APP}
          COMMAND $<TARGET_FILE_NAME:${TEST_APP}>
          WORKING_DIRECTORY $<TARGET_FILE_DIR:${TEST_APP}>
diff --git a/opendaq_ref b/opendaq_ref
index d0a6910..de045e5 100644
--- a/opendaq_ref
+++ b/opendaq_ref
@@ -1 +1 @@
-4757349a1db30721bead0cb695ec3a147913aef4
+47593806ee16fbd5ea6b19f1f32309b583bb9a52
diff --git a/shared/libraries/websocket_streaming/src/CMakeLists.txt b/shared/libraries/websocket_streaming/src/CMakeLists.txt
index 4da86a8..a06deea 100644
--- a/shared/libraries/websocket_streaming/src/CMakeLists.txt
+++ b/shared/libraries/websocket_streaming/src/CMakeLists.txt
@@ -46,6 +46,9 @@ add_library(${LIB_NAME} STATIC ${SRC_Cpp}
 
 add_library(${OPENDAQ_SDK_TARGET_NAMESPACE}::${BASE_NAME} ALIAS ${LIB_NAME})
 
+opendaq_target_pch(${LIB_NAME} <opendaq/opendaq.h>)
+opendaq_target_unity_libs(${LIB_NAME} BATCH_SIZE 4)
+
 if(BUILD_64Bit OR BUILD_ARM)
     set_target_properties(${LIB_NAME} PROPERTIES POSITION_INDEPENDENT_CODE ON)
 else()
diff --git a/shared/libraries/websocket_streaming/tests/CMakeLists.txt b/shared/libraries/websocket_streaming/tests/CMakeLists.txt
index 254d147..3413bf5 100644
--- a/shared/libraries/websocket_streaming/tests/CMakeLists.txt
+++ b/shared/libraries/websocket_streaming/tests/CMakeLists.txt
@@ -25,6 +25,12 @@ target_link_libraries(${TEST_APP} PRIVATE
 set_target_properties(${TEST_APP} PROPERTIES DEBUG_POSTFIX _debug)
 target_include_directories(${TEST_APP} PRIVATE "${CMAKE_CURRENT_SOURCE_DIR}/include")
 
+opendaq_target_pch(${TEST_APP} <opendaq/opendaq.h> <gtest/gtest.h>)
+
+# test_app.cpp defines main().
+set_source_files_properties(test_app.cpp PROPERTIES SKIP_UNITY_BUILD_INCLUSION ON)
+opendaq_target_unity_tests(${TEST_APP} BATCH_SIZE 4)
+
 add_test(NAME ${TEST_APP}
     COMMAND $<TARGET_FILE_NAME:${TEST_APP}>
     WORKING_DIRECTORY $<TARGET_FILE_DIR:${TEST_APP}>