diff --git a/ci/image/Dockerfile b/ci/image/Dockerfile
index af66df9d..e1476618 100644
--- a/ci/image/Dockerfile
+++ b/ci/image/Dockerfile
@@ -1,29 +1,23 @@
 FROM centos:7
 
-RUN yum update -y \
-  && yum install -y epel-release centos-release-scl \
-  && yum-config-manager --enable rhel-server-rhscl-7-rpms \
-  && yum update -y \
-  && yum install -y \
-    devtoolset-6 \
-    gcc-c++ \
-    xz \
-    ccache \
-    git \
-    wget \
-    openssl \
-    libxkbfile-devel \
-    libsecret-devel \
-    libx11-devel
+RUN yum update -y && yum install -y \
+  devtoolset-6 \
+  gcc-c++ \
+  xz \
+  ccache \
+  git \
+  wget \
+  openssl \
+  libxkbfile-devel \
+  libsecret-devel \
+  libx11-devel
 
 RUN mkdir /usr/share/node && cd /usr/share/node \
-  && curl https://nodejs.org/dist/v12.14.0/node-v12.14.0-linux-x64.tar.xz | tar xJ --strip-components=1 --
+  && curl "https://nodejs.org/dist/v12.14.0/node-v12.14.0-linux-$(uname -m | sed 's/86_//; s/aarch/arm/').tar.xz" | tar xJ --strip-components=1 --
 ENV PATH "$PATH:/usr/share/node/bin"
 RUN npm install -g yarn
 
-RUN curl -L https://github.com/mvdan/sh/releases/download/v3.0.1/shfmt_v3.0.1_linux_amd64 > /usr/local/bin/shfmt \
+RUN curl -L "https://github.com/mvdan/sh/releases/download/v3.0.1/shfmt_v3.0.1_linux_$(uname -m | sed 's/x86_/amd/; s/aarch64/arm/')" > /usr/local/bin/shfmt \
   && chmod +x /usr/local/bin/shfmt
 
-RUN echo 'source /opt/rh/devtoolset-6/enable' >> /root/.bashrc
-
 ENTRYPOINT ["/bin/bash", "-c"]
diff --git a/src/node/app/update.ts b/src/node/app/update.ts
index 41e1bf5c..629497c1 100644
--- a/src/node/app/update.ts
+++ b/src/node/app/update.ts
@@ -194,8 +194,8 @@ export class UpdateHttpProvider extends HttpProvider {
     }
   }
 
-  public async downloadAndApplyUpdate(update: Update, targetPath?: string, target?: string): Promise<void> {
-    const releaseName = await this.getReleaseName(update, target)
+  public async downloadAndApplyUpdate(update: Update, targetPath?: string): Promise<void> {
+    const releaseName = await this.getReleaseName(update)
     const url = this.downloadUrl.replace("{{VERSION}}", update.version).replace("{{RELEASE_NAME}}", releaseName)
 
     let downloadPath = path.join(tmpdir, "updates", releaseName)
@@ -298,7 +298,8 @@ export class UpdateHttpProvider extends HttpProvider {
   /**
    * Given an update return the name for the packaged archived.
    */
-  private async getReleaseName(update: Update, target: string = os.platform()): Promise<string> {
+  public async getReleaseName(update: Update): Promise<string> {
+    let target: string = os.platform()
     if (target === "linux") {
       const result = await util
         .promisify(cp.exec)("ldd --version")
diff --git a/test/update.test.ts b/test/update.test.ts
index 903c9df7..779dba1a 100644
--- a/test/update.test.ts
+++ b/test/update.test.ts
@@ -2,6 +2,7 @@ import zip from "adm-zip"
 import * as assert from "assert"
 import * as fs from "fs-extra"
 import * as http from "http"
+import * as os from "os"
 import * as path from "path"
 import * as tar from "tar-fs"
 import * as zlib from "zlib"
@@ -65,7 +66,20 @@ describe("update", () => {
   }
 
   before(async () => {
-    const archiveName = "code-server-9999999.99999.9999-linux-x86_64"
+    await new Promise((resolve, reject) => {
+      server.on("error", reject)
+      server.on("listening", resolve)
+      server.listen({
+        port: 0,
+        host: "localhost",
+      })
+    })
+
+    const p = provider()
+    const archiveName = (await p.getReleaseName({ version: "9999999.99999.9999", checked: 0 })).replace(
+      /.tar.gz$|.zip$/,
+      "",
+    )
     await fs.remove(path.join(tmpdir, "tests/updates"))
     await fs.mkdirp(path.join(archivePath, archiveName))
 
@@ -74,8 +88,16 @@ describe("update", () => {
       fs.writeFile(path.join(archivePath, archiveName, "node"), `NODE BINARY`),
     ])
 
-    await Promise.all([
-      new Promise((resolve, reject) => {
+    if (os.platform() === "darwin") {
+      await new Promise((resolve, reject) => {
+        const zipFile = new zip()
+        zipFile.addLocalFolder(archivePath)
+        zipFile.writeZip(archivePath + ".zip", (error) => {
+          return error ? reject(error) : resolve(error)
+        })
+      })
+    } else {
+      await new Promise((resolve, reject) => {
         const write = fs.createWriteStream(archivePath + ".tar.gz")
         const compress = zlib.createGzip()
         compress.pipe(write)
@@ -86,24 +108,8 @@ describe("update", () => {
         write.on("finish", () => {
           resolve()
         })
-      }),
-      new Promise((resolve, reject) => {
-        const zipFile = new zip()
-        zipFile.addLocalFolder(archivePath)
-        zipFile.writeZip(archivePath + ".zip", (error) => {
-          return error ? reject(error) : resolve(error)
-        })
-      }),
-    ])
-
-    await new Promise((resolve, reject) => {
-      server.on("error", reject)
-      server.on("listening", resolve)
-      server.listen({
-        port: 0,
-        host: "localhost",
       })
-    })
+    }
   })
 
   after(() => {
@@ -205,18 +211,15 @@ describe("update", () => {
     assert.equal(`console.log("OLD")`, await fs.readFile(entry, "utf8"))
 
     // Updating should replace the existing version.
-    await p.downloadAndApplyUpdate(update, destination, "linux")
+    await p.downloadAndApplyUpdate(update, destination)
     assert.equal(`console.log("UPDATED")`, await fs.readFile(entry, "utf8"))
 
     // Should still work if there is no existing version somehow.
     await fs.remove(destination)
-    await p.downloadAndApplyUpdate(update, destination, "linux")
+    await p.downloadAndApplyUpdate(update, destination)
     assert.equal(`console.log("UPDATED")`, await fs.readFile(entry, "utf8"))
 
-    assert.deepEqual(spy, [
-      "/latest",
-      `/download/${version}/code-server-${version}-linux-x86_64.tar.gz`,
-      `/download/${version}/code-server-${version}-linux-x86_64.tar.gz`,
-    ])
+    const archiveName = await p.getReleaseName(update)
+    assert.deepEqual(spy, ["/latest", `/download/${version}/${archiveName}`, `/download/${version}/${archiveName}`])
   })
 })