diff --git a/CMakeLists.txt b/CMakeLists.txt
index 9ec0f23..35953d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,15 +24,6 @@ message("BLOSC_INSTALL_DIR='${BLOSC_INSTALL_DIR}'")
 message("BLOSC_CMAKE_ARGS='${BLOSC_CMAKE_ARGS}'")
 message("GIT_EXECUTABLE='${GIT_EXECUTABLE}'")

-ExternalProject_Add(project_blosc
-  PREFIX ${BLOSC_PREFIX}
-  GIT_REPOSITORY https://github.com/Blosc/c-blosc.git
-  GIT_TAG main
-  INSTALL_DIR ${BLOSC_INSTALL_DIR}
-  CMAKE_ARGS ${BLOSC_CMAKE_ARGS}
-)
-
-
 # sources
 set(SOURCES src/blosc_filter.c)
 set(PLUGIN_SOURCES src/blosc_filter.c src/blosc_plugin.c )
@@ -56,7 +47,6 @@ include_directories(${HDF5_INCLUDE_DIRS})
 # add blosc libraries
 add_library(blosc_shared SHARED IMPORTED)
 set_property(TARGET blosc_shared PROPERTY IMPORTED_LOCATION ${BLOSC_INSTALL_DIR}/${CMAKE_INSTALL_LIBDIR}/${CMAKE_SHARED_LIBRARY_PREFIX}blosc${CMAKE_SHARED_LIBRARY_SUFFIX})
-add_dependencies(blosc_shared project_blosc)
 include_directories(${BLOSC_INSTALL_DIR}/include)

 add_library(blosc_filter_shared SHARED ${SOURCES})