diff --git a/build_system.d b/build_system.d
index bd2e513..9a217eb 100755
--- a/build_system.d
+++ b/build_system.d
@@ -121,12 +121,10 @@ void createRelease(string ver) {
         "name": "Rail Signal v" ~ ver,
         "body": "An automated release."
     ];
-    data.object["prerelease"] = JSONValue(true);
+    data.object["prerelease"] = JSONValue(false);
     data.object["generate_release_notes"] = JSONValue(false);
-    print("Sending release API request:\n%s", data.toPrettyString);
 
     auto rq = Request();
-    rq.verbosity = 2;
     auto props = Properties("github_token.properties");
     string username = props["username"];
     string token = props["token"];
@@ -139,17 +137,15 @@ void createRelease(string ver) {
     if (response.code == 201) {
         string responseBody = cast(string) response.responseBody;
         JSONValue responseData = parseJSON(responseBody);
-        string assetUrl = responseData["assets_url"].str;
-        print("Got asset url: %s", assetUrl);
-        auto f = File("./target/rail-signal-" ~ ver ~ ".jar", "rb");
-        auto assetResponse = rq.post(
-            assetUrl,
-            f.byChunk(4096),
-            "application/zip"
+        print("Created release %s", responseData["url"].str);
+        string command = format!"./upload-asset.sh github_api_token=%s owner=andrewlalis repo=RailSignalAPI tag=v%s filename=%s"(
+            token,
+            ver,
+            "./target/rail-signal-" ~ ver ~ ".jar"
         );
-        writeln(assetResponse);
+        runOrQuit(command);
     } else {
-        error("An error occurred.");
+        error("An error occurred while creating the release.");
         writeln(response.responseBody);
     }
 }
diff --git a/upload-asset.sh b/upload-asset.sh
new file mode 100755
index 0000000..206e3cd
--- /dev/null
+++ b/upload-asset.sh
@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+#
+# Author: Stefan Buck
+# License: MIT
+# https://gist.github.com/stefanbuck/ce788fee19ab6eb0b4447a85fc99f447
+#
+#
+# This script accepts the following parameters:
+#
+# * owner
+# * repo
+# * tag
+# * filename
+# * github_api_token
+#
+# Script to upload a release asset using the GitHub API v3.
+#
+# Example:
+#
+# upload-github-release-asset.sh github_api_token=TOKEN owner=stefanbuck repo=playground tag=v0.1.0 filename=./build.zip
+#
+
+# Check dependencies.
+set -e
+xargs=$(which gxargs || which xargs)
+
+# Validate settings.
+[ "$TRACE" ] && set -x
+
+CONFIG=$@
+
+for line in $CONFIG; do
+  eval "$line"
+done
+
+# Define variables.
+GH_API="https://api.github.com"
+GH_REPO="$GH_API/repos/$owner/$repo"
+GH_TAGS="$GH_REPO/releases/tags/$tag"
+AUTH="Authorization: token $github_api_token"
+WGET_ARGS="--content-disposition --auth-no-challenge --no-cookie"
+CURL_ARGS="-LJO#"
+
+if [[ "$tag" == 'LATEST' ]]; then
+  GH_TAGS="$GH_REPO/releases/latest"
+fi
+
+# Validate token.
+curl -o /dev/null -sH "$AUTH" $GH_REPO || { echo "Error: Invalid repo, token or network issue!";  exit 1; }
+
+# Read asset tags.
+response=$(curl -sH "$AUTH" $GH_TAGS)
+
+# Get ID of the asset based on given filename.
+eval $(echo "$response" | grep -m 1 "id.:" | grep -w id | tr : = | tr -cd '[[:alnum:]]=')
+[ "$id" ] || { echo "Error: Failed to get release id for tag: $tag"; echo "$response" | awk 'length($0)<100' >&2; exit 1; }
+
+# Upload asset
+echo "Uploading asset... "
+
+# Construct url
+GH_ASSET="https://uploads.github.com/repos/$owner/$repo/releases/$id/assets?name=$(basename $filename)"
+
+curl "$GITHUB_OAUTH_BASIC" --data-binary @"$filename" -H "Authorization: token $github_api_token" -H "Content-Type: application/octet-stream" $GH_ASSET