diff --git a/cmake/hdf5.cmake b/cmake/hdf5.cmake
index 00c5beb..ada5f68 100644
--- a/cmake/hdf5.cmake
+++ b/cmake/hdf5.cmake
@@ -32,11 +32,16 @@ set(HDF5_INCLUDE_DIRS ${CMAKE_INSTALL_FULL_INCLUDEDIR})
 file(READ ${CMAKE_CURRENT_LIST_DIR}/libraries.json json)
 
 # --- Zlib
+if(build_zlib)
+  set(zlib_dep DEPENDS ZLIB)
 if(TARGET ZLIB::ZLIB)
   add_custom_target(ZLIB)
 else()
   include(${CMAKE_CURRENT_LIST_DIR}/zlib.cmake)
 endif()
+else()
+  set(zlib_dep)
+endif()
 
 # --- HDF5
 # https://forum.hdfgroup.org/t/issues-when-using-hdf5-as-a-git-submodule-and-using-cmake-with-add-subdirectory/7189/2
@@ -76,6 +81,10 @@ endif()
 
 if(hdf5_url MATCHES "hdf5_([0-9]+\.[0-9]+\.[0-9]+)\.")
   set(HDF5_VERSION "${CMAKE_MATCH_1}")
+elseif(hdf5_url MATCHES "hdf5-([0-9]+\_[0-9]+\_[0-9]+)")
+  string(REPLACE "_" "." HDF5_VERSION "${CMAKE_MATCH_1}")
+else()
+  message(FATAL_ERROR "Could not determine HDF5 version from URL: ${hdf5_url}")
 endif()
 
 message(STATUS "Building HDF5 version ${HDF5_VERSION}")
@@ -84,7 +93,7 @@ ExternalProject_Add(HDF5
 URL ${hdf5_url}
 CMAKE_ARGS ${hdf5_cmake_args}
 BUILD_BYPRODUCTS ${HDF5_LIBRARIES}
-DEPENDS ZLIB
+${zlib_dep}
 CONFIGURE_HANDLED_BY_BUILD ON
 USES_TERMINAL_DOWNLOAD true
 USES_TERMINAL_UPDATE true
diff --git a/cmake/libraries.json b/cmake/libraries.json
index ec33162..34f1c31 100644
--- a/cmake/libraries.json
+++ b/cmake/libraries.json
@@ -6,6 +6,6 @@
     "url" : "https://github.com/zlib-ng/zlib-ng/archive/refs/tags/2.2.2.tar.gz"
   },
   "hdf5": {
-    "url": "https://github.com/HDFGroup/hdf5/archive/refs/tags/hdf5_1.14.5.tar.gz"
+    "url": "https://github.com/HDFGroup/hdf5/archive/refs/tags/hdf5-1_10_11.tar.gz"
   }
 }
diff --git a/scripts/CMakeLists.txt b/scripts/CMakeLists.txt
index c9ab22c..392df3f 100644
--- a/scripts/CMakeLists.txt
+++ b/scripts/CMakeLists.txt
@@ -7,6 +7,7 @@ LANGUAGES C Fortran
 
 option(hdf5_parallel "build HDF5 parallel MPI")
 option(zlib_legacy "use legacy zlib 1.x")
+option(build_zlib "build zlib")
 
 # --- system checks
 message(STATUS "CMAKE_INSTALL_PREFIX: ${CMAKE_INSTALL_PREFIX}")