diff --git a/binding.gyp b/binding.gyp
index 4e472cc6..0c271296 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -193,6 +193,11 @@
               '-Wno-cast-function-type'
             ]
           }],
+          ['target_arch == "arm"', {
+            'cflags_cc': [
+              '-Wno-psabi'
+            ]
+          }],
           ['OS == "win"', {
             'msvs_settings': {
               'VCCLCompilerTool': {
diff --git a/install/libvips.js b/install/libvips.js
index 8128f838..06c932d3 100644
--- a/install/libvips.js
+++ b/install/libvips.js
@@ -14,6 +14,12 @@ const agent = require('../lib/agent');
 const libvips = require('../lib/libvips');
 const platform = require('../lib/platform');
 
+const minimumGlibcVersionByArch = {
+  arm: '2.28',
+  arm64: '2.29',
+  x64: '2.17'
+};
+
 const { minimumLibvipsVersion, minimumLibvipsVersionLabelled } = libvips;
 const distBaseUrl = process.env.npm_config_sharp_dist_base_url || process.env.SHARP_DIST_BASE_URL || `https://github.com/lovell/sharp-libvips/releases/download/v${minimumLibvipsVersionLabelled}/`;
 
@@ -64,8 +70,7 @@ try {
       throw new Error(`BSD/SunOS systems require manual installation of libvips >= ${minimumLibvipsVersion}`);
     }
     if (detectLibc.family === detectLibc.GLIBC && detectLibc.version) {
-      const minimumGlibcVersion = arch === 'arm64' ? '2.29.0' : '2.17.0';
-      if (semver.lt(`${detectLibc.version}.0`, minimumGlibcVersion)) {
+      if (semver.lt(`${detectLibc.version}.0`, `${minimumGlibcVersionByArch[arch]}.0`)) {
         throw new Error(`Use with glibc ${detectLibc.version} requires manual installation of libvips >= ${minimumLibvipsVersion}`);
       }
     }
diff --git a/package.json b/package.json
index 3df2555a..830f7057 100644
--- a/package.json
+++ b/package.json
@@ -118,15 +118,15 @@
     "tunnel-agent": "^0.6.0"
   },
   "devDependencies": {
-    "async": "^3.1.1",
+    "async": "^3.2.0",
     "cc": "^2.0.1",
     "decompress-zip": "^0.3.2",
     "documentation": "^12.1.4",
     "exif-reader": "^1.0.3",
     "icc": "^1.0.0",
     "license-checker": "^25.0.1",
-    "mocha": "^7.0.1",
-    "mock-fs": "^4.10.4",
+    "mocha": "^7.1.0",
+    "mock-fs": "^4.11.0",
     "nyc": "^15.0.0",
     "prebuild": "^10.0.0",
     "prebuild-ci": "^3.1.0",
@@ -135,7 +135,7 @@
   },
   "license": "Apache-2.0",
   "config": {
-    "libvips": "8.9.1-alpha1"
+    "libvips": "8.9.1-alpha2"
   },
   "engines": {
     "node": ">=10.16.0"
diff --git a/test/fixtures/expected/blur-0.3.jpg b/test/fixtures/expected/blur-0.3.jpg
index e982f561..db992900 100644
Binary files a/test/fixtures/expected/blur-0.3.jpg and b/test/fixtures/expected/blur-0.3.jpg differ
diff --git a/test/unit/beforeEach.js b/test/unit/beforeEach.js
index 7fc0b9f2..e2fe4fcb 100644
--- a/test/unit/beforeEach.js
+++ b/test/unit/beforeEach.js
@@ -5,7 +5,10 @@ const sharp = require('../../');
 
 const usingCache = detectLibc.family !== detectLibc.MUSL;
 const usingSimd = !process.env.G_DEBUG;
-const concurrency = detectLibc.family === detectLibc.MUSL ? 1 : undefined;
+const concurrency =
+  detectLibc.family === detectLibc.MUSL || process.arch === 'arm'
+    ? 1
+    : undefined;
 
 beforeEach(function () {
   sharp.cache(usingCache);
diff --git a/test/unit/platform.js b/test/unit/platform.js
index 52f0a599..06b61a20 100644
--- a/test/unit/platform.js
+++ b/test/unit/platform.js
@@ -43,7 +43,10 @@ describe('Platform-detection', function () {
 
   it('Defaults to ARMv6 for 32-bit', function () {
     process.env.npm_config_arch = 'arm';
+    const armVersion = process.config.variables.arm_version;
+    delete process.config.variables.arm_version;
     assert.strictEqual('armv6', platform().split('-')[1]);
+    process.config.variables.arm_version = armVersion;
     delete process.env.npm_config_arch;
   });