diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3954c2a..4a2d7b5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## OpenBLAS v0.3.31.159 (v0.3.31-159-g7a95460b)
+
+### 0.3.31.159.0 (2026-03-17)
+- Update to v0.3.31.159
+
 ## OpenBLAS v0.3.31.126 (v0.3.31-126-g55b16e59)
 
 ### 0.3.31.126.6 (2026-03-17)
@@ -93,4 +98,4 @@
 ## OpenBLAS v0.3.29.0
 
 ### 0.3.29.0.0 (2025-04-03)
-- Add build script for Windows on ARM64
+- Add build script for Windows on ARM64
\ No newline at end of file
diff --git a/OpenBLAS b/OpenBLAS
index 55b16e5..7a95460 160000
--- a/OpenBLAS
+++ b/OpenBLAS
@@ -1 +1 @@
-Subproject commit 55b16e5923d48cd3de42ff82c2c024a4a0c7e043
+Subproject commit 7a95460bb1fc7081a7861515705ed06a6223a5a2
diff --git a/ci-before-build.sh b/ci-before-build.sh
index 3c6e1c0..83abf25 100755
--- a/ci-before-build.sh
+++ b/ci-before-build.sh
@@ -1,44 +1,5 @@
 #! /bin/bash
 
-
-# Most of the content in this file comes from https://github.com/multi-build/multibuild, with some modifications
-# Follow the license below
-
-# .. _license:
-
-# *********************
-# Copyright and License
-# *********************
-
-# The multibuild package, including all examples, code snippets and attached
-# documentation is covered by the 2-clause BSD license.
-
-#     Copyright (c) 2013-2024, Matt Terry and Matthew Brett; all rights
-#     reserved.
-
-#     Redistribution and use in source and binary forms, with or without
-#     modification, are permitted provided that the following conditions are
-#     met:
-
-#     1. Redistributions of source code must retain the above copyright notice,
-#     this list of conditions and the following disclaimer.
-
-#     2. Redistributions in binary form must reproduce the above copyright
-#     notice, this list of conditions and the following disclaimer in the
-#     documentation and/or other materials provided with the distribution.
-
-#     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-#     IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
-#     THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-#     PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-#     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
-#     EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
-#     PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-#     PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-#     LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-#     NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-#     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
 set -xe
 
 if [[ "$NIGHTLY" = "true" ]]; then
@@ -53,6 +14,13 @@ else
     export OPENBLAS_COMMIT=$(cat openblas_commit.txt)
     version=$(grep "^version =" pyproject.toml | sed 's/version = "//;s/"//')
 fi
+
+# Sanity check, strip off the last (build) number from version, convert - to . in OPENBLAS_COMMIT
+if [[ "${OPENBLAS_COMMIT//-/.}" != *"${version%.*}"* ]]; then
+    echo "OPENBLAS_COMMIT $OPENBLAS_COMMIT does not match the pyproject.toml version $version"
+    exit -1
+fi
+
 sed -e "s/^VERSION = .*/VERSION = ${version}/" -i.bak OpenBLAS/Makefile.rule
 echo "creating wheel from $OPENBLAS_COMMIT (NIGHTLY is $NIGHTLY)"
 
@@ -61,17 +29,6 @@ if [ "$(uname)" != "Darwin" ]; then
   export PATH=/opt/clang/bin:$PATH
 fi
 
-# Work round bug in travis xcode image described at
-# https://github.com/direnv/direnv/issues/210
-shell_session_update() { :; }
-
-# Workaround for https://github.com/travis-ci/travis-ci/issues/8703
-# suggested by Thomas K at
-# https://github.com/travis-ci/travis-ci/issues/8703#issuecomment-347881274
-unset -f cd
-unset -f pushd
-unset -f popd
-
 # Build OpenBLAS
 source build-openblas.sh
 
diff --git a/openblas_commit.txt b/openblas_commit.txt
index c2ef62e..39ea368 100644
--- a/openblas_commit.txt
+++ b/openblas_commit.txt
@@ -1 +1 @@
-v0.3.31-126-g55b16e59
+v0.3.31-159-g7a95460b
diff --git a/pyproject.toml b/pyproject.toml
index f1f744a..7b58511 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,8 +8,8 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "scipy-openblas64"
-# v0.3.31-126-g55b16e59
-version = "0.3.31.126.6"
+# v0.3.31.159
+version = "0.3.31.159.0"
 requires-python = ">=3.7"
 description = "Provides OpenBLAS for python packaging"
 readme = "README.md"