diff --git a/project/Appveyor.scala b/project/Appveyor.scala
new file mode 100644
index 000000000..f0983e17f
--- /dev/null
+++ b/project/Appveyor.scala
@@ -0,0 +1,31 @@
+import argonaut._
+import argonaut.Argonaut._
+import argonaut.ArgonautShapeless._
+
+import sbt.Logger
+
+object Appveyor {
+
+  final case class Build(
+    buildId: Long,
+    branch: String,
+    commitId: String,
+    status: String
+  )
+
+  def branchLastBuild(repo: String, branch: String, log: Logger): Build = {
+
+    final case class Response(build: Build)
+
+    val url = s"https://ci.appveyor.com/api/projects/$repo/branch/$branch"
+    val rawResp = HttpUtil.fetch(url, log)
+
+    rawResp.decodeEither[Response] match {
+      case Left(err) =>
+        sys.error(s"Error decoding response from $url: $err")
+      case Right(resp) =>
+        resp.build
+    }
+  }
+
+}
diff --git a/project/HttpUtil.scala b/project/HttpUtil.scala
new file mode 100644
index 000000000..1cc3637bf
--- /dev/null
+++ b/project/HttpUtil.scala
@@ -0,0 +1,57 @@
+import java.io.{ByteArrayOutputStream, InputStream}
+import java.net.{HttpURLConnection, URL, URLConnection}
+import java.nio.charset.StandardCharsets
+
+import sbt.Logger
+
+object HttpUtil {
+
+  private def readFully(is: InputStream): Array[Byte] = {
+    val buffer = new ByteArrayOutputStream
+    val data = Array.ofDim[Byte](16384)
+
+    var nRead = 0
+    while ({
+      nRead = is.read(data, 0, data.length)
+      nRead != -1
+    })
+      buffer.write(data, 0, nRead)
+
+    buffer.flush()
+    buffer.toByteArray
+  }
+
+  def fetch(url: String, log: Logger): String = {
+
+    val url0 = new URL(url)
+
+    log.info(s"Fetching $url")
+
+    val (rawResp, code) = {
+
+      var conn: URLConnection = null
+      var httpConn: HttpURLConnection = null
+      var is: InputStream = null
+
+      try {
+        conn = url0.openConnection()
+        httpConn = conn.asInstanceOf[HttpURLConnection]
+        httpConn.setRequestProperty("Accept", "application/vnd.travis-ci.2+json")
+        is = conn.getInputStream
+
+        (readFully(is), httpConn.getResponseCode)
+      } finally {
+        if (is != null)
+          is.close()
+        if (httpConn != null)
+          httpConn.disconnect()
+      }
+    }
+
+    if (code / 100 != 2)
+      sys.error(s"Unexpected response code when getting $url: $code")
+
+    new String(rawResp, StandardCharsets.UTF_8)
+  }
+
+}
diff --git a/project/Release.scala b/project/Release.scala
index 1d470aec5..38fd0ef7d 100644
--- a/project/Release.scala
+++ b/project/Release.scala
@@ -44,6 +44,23 @@ object Release {
     state
   }
 
+  val checkAppveyorStatus = ReleaseStep { state =>
+
+    val currentHash = state.vcs.currentHash
+
+    val build = Appveyor.branchLastBuild("alexarchambault/coursier-a7n6k", "master", state.log)
+
+    state.log.info(s"Found last build ${build.buildId} for branch master, status: ${build.status}")
+
+    if (build.commitId != currentHash)
+      sys.error(s"Last master Appveyor build corresponds to commit ${build.commitId}, expected $currentHash")
+
+    if (build.status != "success")
+      sys.error(s"Last master Appveyor build status: ${build.status}")
+
+    state
+  }
+
   val previousReleaseVersion = AttributeKey[String]("previousReleaseVersion")
   val initialVersion = AttributeKey[String]("initialVersion")
 
@@ -242,6 +259,7 @@ object Release {
   val settings = Seq(
     releaseProcess := Seq[ReleaseStep](
       checkTravisStatus,
+      checkAppveyorStatus,
       savePreviousReleaseVersion,
       checkSnapshotDependencies,
       inquireVersions,
diff --git a/project/Travis.scala b/project/Travis.scala
index f02386a2b..e6878d2b3 100644
--- a/project/Travis.scala
+++ b/project/Travis.scala
@@ -1,7 +1,3 @@
-import java.io.{ByteArrayOutputStream, InputStream}
-import java.net.{HttpURLConnection, URL, URLConnection}
-import java.nio.charset.StandardCharsets
-
 import argonaut._
 import argonaut.Argonaut._
 import argonaut.ArgonautShapeless._
@@ -56,58 +52,10 @@ object Travis {
   )
 
 
-  private def readFully(is: InputStream): Array[Byte] = {
-    val buffer = new ByteArrayOutputStream
-    val data = Array.ofDim[Byte](16384)
-
-    var nRead = 0
-    while ({
-      nRead = is.read(data, 0, data.length)
-      nRead != -1
-    })
-      buffer.write(data, 0, nRead)
-
-    buffer.flush()
-    buffer.toByteArray
-  }
-
-  private def fetch(url: String, log: Logger): String = {
-
-    val url0 = new URL(url)
-
-    log.info(s"Fetching $url")
-
-    val (rawResp, code) = {
-
-      var conn: URLConnection = null
-      var httpConn: HttpURLConnection = null
-      var is: InputStream = null
-
-      try {
-        conn = url0.openConnection()
-        httpConn = conn.asInstanceOf[HttpURLConnection]
-        httpConn.setRequestProperty("Accept", "application/vnd.travis-ci.2+json")
-        is = conn.getInputStream
-
-        (readFully(is), httpConn.getResponseCode)
-      } finally {
-        if (is != null)
-          is.close()
-        if (httpConn != null)
-          httpConn.disconnect()
-      }
-    }
-
-    if (code / 100 != 2)
-      sys.error(s"Unexpected response code when getting $url: $code")
-
-    new String(rawResp, StandardCharsets.UTF_8)
-  }
-
   def builds(repo: String, log: Logger): List[Build] = {
 
     val url = s"https://api.travis-ci.org/repos/$repo/builds"
-    val resp = fetch(url, log)
+    val resp = HttpUtil.fetch(url, log)
 
     resp.decodeEither[Builds] match {
       case Left(err) =>
@@ -121,7 +69,7 @@ object Travis {
   def job(id: JobId, log: Logger): Job = {
 
     val url = s"https://api.travis-ci.org/jobs/${id.value}"
-    val resp = fetch(url, log)
+    val resp = HttpUtil.fetch(url, log)
 
     resp.decodeEither[Job] match {
       case Left(err) =>