diff --git a/source/dub/commandline.d b/source/dub/commandline.d
index e4ed883..a391089 100644
--- a/source/dub/commandline.d
+++ b/source/dub/commandline.d
@@ -212,6 +212,7 @@
 	if (!cmd.skipDubInitialization) {
 		if (options.bare) {
 			dub = new Dub(Path(getcwd()));
+			dub.rootPath = Path(options.root_path);
 			dub.defaultPlacementLocation = options.placementLocation;
 		} else {
 			// initialize DUB
@@ -1088,14 +1089,14 @@
 	this()
 	{
 		this.name = "upgrade";
-		this.argumentsPattern = "[<package>]";
-		this.description = "Forces an upgrade of all dependencies";
+		this.argumentsPattern = "[<packages...>]";
+		this.description = "Forces an upgrade of the dependencies";
 		this.helpText = [
 			"Upgrades all dependencies of the package by querying the package registry(ies) for new versions.",
 			"",
-			"This will also update the versions stored in the selections file ("~SelectedVersions.defaultFile~") accordingly.",
+			"This will update the versions stored in the selections file ("~SelectedVersions.defaultFile~") accordingly.",
 			"",
-			"If a package specified, (only) that package will be upgraded. Otherwise all direct and indirect dependencies of the current package will get upgraded."
+			"If one or more package names are specified, only those dependencies will be upgraded. Otherwise all direct and indirect dependencies of the root package will get upgraded."
 		];
 	}
 
@@ -1125,8 +1126,7 @@
 		auto options = UpgradeOptions.upgrade|UpgradeOptions.select;
 		if (m_missingOnly) options &= ~UpgradeOptions.upgrade;
 		if (m_prerelease) options |= UpgradeOptions.preRelease;
-		enforceUsage(free_args.length == 0, "Upgrading a specific package is not yet implemented.");
-		dub.upgrade(options);
+		dub.upgrade(options, free_args);
 		return 0;
 	}
 }
diff --git a/source/dub/dub.d b/source/dub/dub.d
index 896327a..3c64c0b 100644
--- a/source/dub/dub.d
+++ b/source/dub/dub.d
@@ -338,8 +338,15 @@
 	string getDefaultConfiguration(BuildPlatform platform, bool allow_non_library_configs = true) const { return m_project.getDefaultConfiguration(platform, allow_non_library_configs); }
 
 	/** Attempts to upgrade the dependency selection of the loaded project.
+
+		Params:
+			options = Flags that control how the upgrade is carried out
+			packages_to_upgrade = Optional list of packages. If this list
+				contains one or more packages, only those packages will
+				be upgraded. Otherwise, all packages will be upgraded at
+				once.
 	*/
-	void upgrade(UpgradeOptions options)
+	void upgrade(UpgradeOptions options, string[] packages_to_upgrade = null)
 	{
 		// clear non-existent version selections
 		if (!(options & UpgradeOptions.upgrade)) {
@@ -371,11 +378,13 @@
 		}
 
 		Dependency[string] versions;
-		if ((options & UpgradeOptions.useCachedResult) && m_project.isUpgradeCacheUpToDate()) {
+		if ((options & UpgradeOptions.useCachedResult) && m_project.isUpgradeCacheUpToDate() && !packages_to_upgrade.length) {
 			logDiagnostic("Using cached upgrade results...");
 			versions = m_project.getUpgradeCache();
 		} else {
 			auto resolver = new DependencyVersionResolver(this, options);
+			foreach (p; packages_to_upgrade)
+				resolver.addPackageToUpgrade(p);
 			versions = resolver.resolve(m_project.rootPackage, m_project.selections);
 			if (options & UpgradeOptions.useCachedResult) {
 				logDiagnostic("Caching upgrade results...");
@@ -1176,6 +1185,7 @@
 		Package[string] m_remotePackages;
 		SelectedVersions m_selectedVersions;
 		Package m_rootPackage;
+		bool[string] m_packagesToUpgrade;
 	}
 
 
@@ -1185,6 +1195,11 @@
 		m_options = options;
 	}
 
+	void addPackageToUpgrade(string name)
+	{
+		m_packagesToUpgrade[name] = true;
+	}
+
 	Dependency[string] resolve(Package root, SelectedVersions selected_versions)
 	{
 		m_rootPackage = root;
@@ -1192,12 +1207,17 @@
 		return super.resolve(TreeNode(root.name, Dependency(root.version_)), (m_options & UpgradeOptions.printUpgradesOnly) == 0);
 	}
 
+	protected bool isFixedPackage(string pack)
+	{
+		return m_packagesToUpgrade !is null && pack !in m_packagesToUpgrade;
+	}
+
 	protected override Dependency[] getAllConfigs(string pack)
 	{
 		if (auto pvers = pack in m_packageVersions)
 			return *pvers;
 
-		if (!(m_options & UpgradeOptions.upgrade) && m_selectedVersions.hasSelectedVersion(pack)) {
+		if ((!(m_options & UpgradeOptions.upgrade) || isFixedPackage(pack)) && m_selectedVersions.hasSelectedVersion(pack)) {
 			auto ret = [m_selectedVersions.getSelectedVersion(pack)];
 			logDiagnostic("Using fixed selection %s %s", pack, ret[0]);
 			m_packageVersions[pack] = ret;
diff --git a/test/issue1024-selective-upgrade.sh b/test/issue1024-selective-upgrade.sh
new file mode 100755
index 0000000..a159216
--- /dev/null
+++ b/test/issue1024-selective-upgrade.sh
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+cd ${CURR_DIR}/issue1024-selective-upgrade
+echo "{\"fileVersion\": 1,\"versions\": {\"a\": \"1.0.0\", \"b\": \"1.0.0\"}}" > main/dub.selections.json
+$DUB upgrade --bare --root=main a || exit 1
+
+if ! grep -c -e "\"a\": \"1.0.1\"" main/dub.selections.json; then
+	echo "Specified dependency was not upgraded."
+	exit 1
+fi
+
+if grep -c -e "\"b\": \"1.0.1\"" main/dub.selections.json; then
+	echo "Non-specified dependency got upgraded."
+	exit 1
+fi
diff --git a/test/issue1024-selective-upgrade/.no_build b/test/issue1024-selective-upgrade/.no_build
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/test/issue1024-selective-upgrade/.no_build
diff --git a/test/issue1024-selective-upgrade/a-1.0.0/dub.sdl b/test/issue1024-selective-upgrade/a-1.0.0/dub.sdl
new file mode 100644
index 0000000..7ff9fa1
--- /dev/null
+++ b/test/issue1024-selective-upgrade/a-1.0.0/dub.sdl
@@ -0,0 +1,2 @@
+name "a"
+version "1.0.0"
diff --git a/test/issue1024-selective-upgrade/a-1.0.1/dub.sdl b/test/issue1024-selective-upgrade/a-1.0.1/dub.sdl
new file mode 100644
index 0000000..5c8a407
--- /dev/null
+++ b/test/issue1024-selective-upgrade/a-1.0.1/dub.sdl
@@ -0,0 +1,2 @@
+name "a"
+version "1.0.1"
diff --git a/test/issue1024-selective-upgrade/b-1.0.0/dub.sdl b/test/issue1024-selective-upgrade/b-1.0.0/dub.sdl
new file mode 100644
index 0000000..5597559
--- /dev/null
+++ b/test/issue1024-selective-upgrade/b-1.0.0/dub.sdl
@@ -0,0 +1,2 @@
+name "b"
+version "1.0.0"
diff --git a/test/issue1024-selective-upgrade/b-1.0.1/dub.sdl b/test/issue1024-selective-upgrade/b-1.0.1/dub.sdl
new file mode 100644
index 0000000..5e0c01a
--- /dev/null
+++ b/test/issue1024-selective-upgrade/b-1.0.1/dub.sdl
@@ -0,0 +1,2 @@
+name "b"
+version "1.0.1"
diff --git a/test/issue1024-selective-upgrade/main/dub.sdl b/test/issue1024-selective-upgrade/main/dub.sdl
new file mode 100644
index 0000000..a9da177
--- /dev/null
+++ b/test/issue1024-selective-upgrade/main/dub.sdl
@@ -0,0 +1,3 @@
+name "test"
+dependency "a" version="~>1.0.0"
+dependency "b" version="~>1.0.0"