diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 778f4cba..b85762de 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
         with:
           submodules: recursive
       - name: Set up Python 3.8
-        uses: actions/setup-python@v2.2.1
+        uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Install tox
@@ -37,7 +37,7 @@ jobs:
         with:
           submodules: recursive
       - name: Set up Python 3.8
-        uses: actions/setup-python@v2.2.1
+        uses: actions/setup-python@v5
         with:
           python-version: 3.8
       - name: Install isal
@@ -59,7 +59,7 @@ jobs:
           - "3.10"
           - "3.11"
           - "3.12"
-          - "3.13-dev"
+          - "3.13"
           - "pypy-3.9"
           - "pypy-3.10"
         os: ["ubuntu-latest"]
@@ -75,7 +75,7 @@ jobs:
         with:
           submodules: recursive
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v2.2.1
+        uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install tox and upgrade setuptools
@@ -89,10 +89,10 @@ jobs:
         run: brew install nasm
         if: runner.os == 'macOS'
       - name: Set MSVC developer prompt
-        uses: ilammy/msvc-dev-cmd@v1.6.0
+        uses: ilammy/msvc-dev-cmd@v1
         if: runner.os == 'Windows'
       - name: Install nasm (Windows)
-        uses: ilammy/setup-nasm@v1.2.0
+        uses: ilammy/setup-nasm@v1
         if: runner.os == 'Windows'
       - name: Run tests
         run: tox
@@ -110,7 +110,7 @@ jobs:
       - uses: actions/checkout@v4
         with:
           submodules: recursive
-      - uses: uraimo/run-on-arch-action@v2.5.0
+      - uses: uraimo/run-on-arch-action@v3
         name: Build & run test
         with:
           arch: none
@@ -151,7 +151,7 @@ jobs:
       - name: Install requirements (universal)
         run: conda install isa-l ${{ matrix.python_version}} tox
       - name: Set MSVC developer prompt
-        uses: ilammy/msvc-dev-cmd@v1.6.0
+        uses: ilammy/msvc-dev-cmd@v1
         if: runner.os == 'Windows'
       - name: Run tests (dynamic link)
         run: tox
@@ -194,7 +194,7 @@ jobs:
         with:
           submodules: recursive
           fetch-depth: 0  # Fetch everything to get accurately versioned tag.
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v5
         name: Install Python
       - name: Install cibuildwheel twine wheel
         run: python -m pip install cibuildwheel twine wheel
@@ -202,14 +202,14 @@ jobs:
         run: brew install nasm
         if: runner.os == 'macOS'
       - name: Set MSVC developer prompt
-        uses: ilammy/msvc-dev-cmd@v1.6.0
+        uses: ilammy/msvc-dev-cmd@v1
         if: runner.os == 'Windows'
       - name: Install nasm (Windows)
-        uses: ilammy/setup-nasm@v1.2.0
+        uses: ilammy/setup-nasm@v1
         if: runner.os == 'Windows'
       - name: Set up QEMU
         if: ${{runner.os == 'Linux' && matrix.cibw_archs_linux == 'aarch64'}}
-        uses: docker/setup-qemu-action@v1.0.1
+        uses: docker/setup-qemu-action@v3
         with:
           platforms: arm64
       - name: Build wheels
diff --git a/.gitmodules b/.gitmodules
index 11a84d8b..d79a05a7 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "src/isal/isa-l"]
 	path = src/isal/isa-l
-	url = https://github.com/rhpvorderman/isa-l.git
+	url = https://github.com/intel/isa-l.git
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 2ffabcb8..805a953a 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -7,6 +7,15 @@ Changelog
 .. This document is user facing. Please word the changes in such a way
 .. that users understand how the changes affect the new version.
 
+
+version 1.7.2
+-----------------
++ Use upstream ISA-L version 2.31.1 which includes patches to make 
+  installation on MacOS ARM64 possible.
++ Fix a bug where bytes were copied in the wrong order on big endian
+  architectures. Fixes test failures on s390x.
++ Enable building on GNU/Hurd platforms.
+
 version 1.7.1
 -----------------
 + Fix a bug where flushing files when writing in threaded mode did not work
diff --git a/docs/conf.py b/docs/conf.py
index f92ec8a2..f2ec9dd2 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -42,9 +42,6 @@
 # a list of builtin themes.
 #
 html_theme = 'sphinx_rtd_theme'
-html_theme_options = dict(
-    display_version=True,
-)
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
diff --git a/setup.py b/setup.py
index 7491870d..55c89496 100644
--- a/setup.py
+++ b/setup.py
@@ -26,6 +26,7 @@
                  sys.platform.startswith("netbsd"))
 SYSTEM_IS_UNIX = (sys.platform.startswith("linux") or
                   sys.platform.startswith("darwin") or
+                  sys.platform.startswith("gnu") or
                   SYSTEM_IS_BSD)
 SYSTEM_IS_WINDOWS = sys.platform.startswith("win")
 
diff --git a/src/isal/_version.pyi b/src/isal/_version.pyi
index bd8c70e0..e59e7032 100644
--- a/src/isal/_version.pyi
+++ b/src/isal/_version.pyi
@@ -5,4 +5,4 @@
 # This file is part of python-isal which is distributed under the
 # PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2.
 
-__version__: int
+__version__: str
diff --git a/src/isal/isa-l b/src/isal/isa-l
index e3569fb7..c387163f 160000
--- a/src/isal/isa-l
+++ b/src/isal/isa-l
@@ -1 +1 @@
-Subproject commit e3569fb7224f071fe5ae510453f4451497385e44
+Subproject commit c387163fcbca62701d646149564c550c78a4f985
diff --git a/src/isal/isal_shared.h b/src/isal/isal_shared.h
index 1a01f081..61610276 100644
--- a/src/isal/isal_shared.h
+++ b/src/isal/isal_shared.h
@@ -207,8 +207,15 @@ static int bitbuffer_copy(struct inflate_state *state, char *to, size_t n){
     int remainder = bits_in_buffer % 8;
     // Shift the 8-byte bitbuffer read_in so that the bytes are aligned.
     uint64_t remaining_bytes = state->read_in >> remainder;
+    #if PY_BIG_ENDIAN
+    char *remaining_buffer = (char *)&remaining_bytes;
+    for (int i = 0; i < n; ++i) {
+        to[i] = remaining_buffer[7-i];
+    }
+    #else
     // memcpy works because of little-endianness
     memcpy(to, &remaining_bytes, n);
+    #endif
     return 0;
 }
 
diff --git a/src/isal/isal_zlibmodule.c b/src/isal/isal_zlibmodule.c
index 5463e22f..67547be9 100644
--- a/src/isal/isal_zlibmodule.c
+++ b/src/isal/isal_zlibmodule.c
@@ -266,7 +266,7 @@ PyDoc_STRVAR(isal_zlib_crc32_combine__doc__,
 "  crc2\n"
 "    the second crc32 checksum\n"
 "  crc2_length\n"
-"    the lenght of the data block crc2 was calculated from\n"
+"    the length of the data block crc2 was calculated from\n"
 );
 
 
@@ -1643,7 +1643,7 @@ static inline uint32_t load_u32_le(void *address) {
 static inline uint16_t load_u16_le(void *address) {
     #if PY_BIG_ENDIAN
     uint8_t *mem = address;
-    return mem[0] | (mem[1] << 8) | (mem[2] << 16) | (mem[3] << 24);
+    return mem[0] | (mem[1] << 8);
     #else
     return *(uint16_t *)address;
     #endif