diff --git a/.gitlab/ci/configure_common.cmake b/.gitlab/ci/configure_common.cmake
index a2577ad47a3da1f8236948512b15cd6f1c0dab3b..be8a01130d3618b8850c7f5d5a209760de148718 100644
--- a/.gitlab/ci/configure_common.cmake
+++ b/.gitlab/ci/configure_common.cmake
@@ -72,6 +72,7 @@ enable_project(jsoncpp)
 enable_project(lapack)
 enable_project(libjpegturbo)
 enable_project(libxml2)
+enable_project(libxslt)
 enable_project(llvm)
 enable_project(lz4)
 enable_project(matplotlib)
diff --git a/projects/apple-unix/libxml2.cmake b/projects/apple-unix/libxml2.cmake
deleted file mode 100644
index 39cc1ded723a9698fb67ed01b3ffd4c726374237..0000000000000000000000000000000000000000
--- a/projects/apple-unix/libxml2.cmake
+++ /dev/null
@@ -1,34 +0,0 @@
-if (BUILD_SHARED_LIBS)
-  set(libxml2_shared_args --enable-shared --disable-static)
-else ()
-  set(libxml2_shared_args --disable-shared --enable-static)
-endif ()
-
-superbuild_add_project(libxml2
-  CAN_USE_SYSTEM
-  LICENSE_FILES
-    Copyright
-  SPDX_LICENSE_IDENTIFIER
-    MIT
-  SPDX_COPYRIGHT_TEXT
-    "Copyright (C) 1998-2012 Daniel Veillard"
-  CONFIGURE_COMMAND
-    <SOURCE_DIR>/configure
-      --prefix=<INSTALL_DIR>
-      --without-python
-      --without-icu
-      --without-lzma
-      --without-zlib
-      --without-modules
-      ${libxml2_shared_args}
-  BUILD_COMMAND
-    $(MAKE)
-  INSTALL_COMMAND
-    $(MAKE) install
-  BUILD_IN_SOURCE 1)
-
-if (APPLE AND CMAKE_OSX_DEPLOYMENT_TARGET)
-  superbuild_append_flags(c_flags
-    "-mmacosx-version-min=${CMAKE_OSX_DEPLOYMENT_TARGET}"
-    PROJECT_ONLY)
-endif ()
diff --git a/projects/libxml2.cmake b/projects/libxml2.cmake
new file mode 100644
index 0000000000000000000000000000000000000000..92af3af4090cf4702506477dbd1bc90c4418a2bb
--- /dev/null
+++ b/projects/libxml2.cmake
@@ -0,0 +1,23 @@
+set(libxml2_with_iconv ON)
+if (WIN32)
+  set(libxml2_with_iconv OFF)
+endif ()
+
+superbuild_add_project(libxml2
+  CAN_USE_SYSTEM
+  LICENSE_FILES
+    Copyright
+  SPDX_LICENSE_IDENTIFIER
+    MIT
+  SPDX_COPYRIGHT_TEXT
+    "Copyright (C) 1998-2012 Daniel Veillard"
+  CMAKE_ARGS
+    -DCMAKE_INSTALL_LIBDIR:STRING=lib
+    -DCMAKE_INSTALL_NAME_DIR:PATH=<INSTALL_DIR>/lib
+    -DLIBXML2_WITH_PYTHON:BOOL=OFF
+    -DLIBXML2_WITH_ICONV:BOOL=${libxml2_with_iconv}
+    -DLIBXML2_WITH_ICU:BOOL=OFF
+    -DLIBXML2_WITH_LZMA:BOOL=OFF
+    -DLIBXML2_WITH_ZLIB:BOOL=OFF
+    -DLIBXML2_WITH_MODULES:BOOL=OFF
+    -DLIBXML2_WITH_TESTS:BOOL=OFF)
diff --git a/projects/apple-unix/libxml2.system.cmake b/projects/libxml2.system.cmake
similarity index 100%
rename from projects/apple-unix/libxml2.system.cmake
rename to projects/libxml2.system.cmake
diff --git a/projects/libxslt.cmake b/projects/libxslt.cmake
new file mode 100644
index 0000000000000000000000000000000000000000..bd057152bb6cdf10b71de017d63fcd229b3a4cf3
--- /dev/null
+++ b/projects/libxslt.cmake
@@ -0,0 +1,16 @@
+superbuild_add_project(libxslt
+  DEPENDS
+    libxml2
+  LICENSE_FILES
+    Copyright
+  SPDX_LICENSE_IDENTIFIER
+    MIT
+  SPDX_COPYRIGHT_TEXT
+    "Copyright (C) 2001-2002 Daniel Veillard"
+  CMAKE_ARGS
+    -DCMAKE_INSTALL_LIBDIR:STRING=lib
+    -DCMAKE_INSTALL_NAME_DIR:PATH=<INSTALL_DIR>/lib
+    -DLIBXSLT_WITH_PYTHON:BOOL=OFF
+    -DLIBXSLT_WITH_LZMA:BOOL=OFF
+    -DLIBXSLT_WITH_MODULES:BOOL=OFF
+    -DLIBXSLT_WITH_TESTS:BOOL=OFF)
diff --git a/selftest/CMakeLists.txt b/selftest/CMakeLists.txt
index fdad1263234051bc82e74d2c1c90c733824ec8f1..d318b73c888f9eb9d1b1ca844faa9c1da549206f 100644
--- a/selftest/CMakeLists.txt
+++ b/selftest/CMakeLists.txt
@@ -27,6 +27,8 @@ function (superbuild_find_projects var)
     jsoncpp
     lapack
     libjpegturbo
+    libxml2
+    libxslt
     llvm
     lz4
     openmp
@@ -133,8 +135,7 @@ function (superbuild_find_projects var)
       expat
       ffi
       ffmpeg
-      gperf
-      libxml2)
+      gperf)
   endif ()
 
   if (NOT APPLE)
diff --git a/versions.cmake b/versions.cmake
index 85aadc11dac3eaf30414cada5cf8af4dfbf07e75..5474858ddd653f8dffb7c6fa0a952bd20b30cb10 100644
--- a/versions.cmake
+++ b/versions.cmake
@@ -109,6 +109,11 @@ superbuild_set_revision(libxml2
   URL     "https://www.paraview.org/files/dependencies/libxml2-2.11.5.tar.xz"
   URL_MD5 b2e7332289f5784087448a0717f45ac3)
 
+superbuild_set_revision(libxslt
+  # https://download.gnome.org/sources/libxslt/
+  URL     "https://www.paraview.org/files/dependencies/libxslt-1.1.42.tar.xz"
+  URL_MD5 56bc5d89aa39d62002961c150fec08a0)
+
 superbuild_set_revision(nlohmannjson
   # https://github.com/nlohmann/json/releases
   # Be sure to grab the full source code, not one of the subdirectory archives.