diff --git a/rcljava/CMakeLists.txt b/rcljava/CMakeLists.txt
index a6b4211f..c572de84 100644
--- a/rcljava/CMakeLists.txt
+++ b/rcljava/CMakeLists.txt
@@ -34,8 +34,6 @@ if(NOT WIN32)
   add_compile_options(-Wall -Wextra -Wpedantic)
 endif()
 
-set(CMAKE_JAVA_COMPILE_FLAGS "-source" "1.6" "-target" "1.6")
-
 include_directories(include)
 
 function(set_properties _target_name _build_type)
diff --git a/rcljava_common/CMakeLists.txt b/rcljava_common/CMakeLists.txt
index 3bc04fde..9dd46203 100644
--- a/rcljava_common/CMakeLists.txt
+++ b/rcljava_common/CMakeLists.txt
@@ -30,8 +30,6 @@ if(NOT WIN32)
   add_compile_options(-Wall -Wextra -Wpedantic)
 endif()
 
-set(CMAKE_JAVA_COMPILE_FLAGS "-source" "1.6" "-target" "1.6")
-
 set(${PROJECT_NAME}_java_sources
   "src/main/java/org/ros2/rcljava/common/JNIUtils.java"
   "src/main/java/org/ros2/rcljava/exceptions/RCLException.java"