diff --git a/CHANGELOG.md b/CHANGELOG.md
index a980a9221..4196bfc67 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,4 +1,4 @@
-# v1.7.2
+# v1.7.3
 ## 01/21/2021
 
 1. [](#improved)
@@ -12,6 +12,12 @@
     * Fixed Clockwork debugger in sub-folder multi-site setups
     * Fixed `Unsupported option "curl" passed to "Symfony\Component\HttpClient\CurlHttpClient"` in `bin/gpm selfupgrade` [#3165](https://github.com/getgrav/grav/issues/3165)
 
+# v1.7.2
+## 01/21/2021
+
+1. [](#improved)
+    * This release was pulled due to a bug in the installer, 1.7.3 replaces it.
+
 # v1.7.1
 ## 01/20/2021
 
diff --git a/system/defines.php b/system/defines.php
index 5b20589d1..8bc03f89b 100644
--- a/system/defines.php
+++ b/system/defines.php
@@ -8,8 +8,8 @@
 
 // Some standard defines
 define('GRAV', true);
-define('GRAV_VERSION', '1.7.2');
-define('GRAV_SCHEMA', '1.7.2_2021-01-21_1');
+define('GRAV_VERSION', '1.7.3');
+define('GRAV_SCHEMA', '1.7.0_2020-11-20_1');
 define('GRAV_TESTING', false);
 
 // PHP minimum requirement
diff --git a/system/src/Grav/Console/Gpm/DirectInstallCommand.php b/system/src/Grav/Console/Gpm/DirectInstallCommand.php
index d551928ff..8712916c0 100644
--- a/system/src/Grav/Console/Gpm/DirectInstallCommand.php
+++ b/system/src/Grav/Console/Gpm/DirectInstallCommand.php
@@ -113,7 +113,6 @@ class DirectInstallCommand extends GpmCommand
         $io->newLine();
         $io->writeln("Preparing to install <cyan>{$package_file}</cyan>");
 
-
         if (Response::isRemote($package_file)) {
             $io->write('  |- Downloading package...     0%');
             try {
@@ -131,7 +130,7 @@ class DirectInstallCommand extends GpmCommand
                 $io->write('  |- Downloading package...   100%');
                 $io->newLine();
             }
-        } else {
+        } elseif (is_file($package_file)) {
             $io->write('  |- Copying package...         0%');
             $zip = GPM::copyPackage($package_file, $tmp_zip);
             if ($zip) {
diff --git a/system/src/Grav/Console/Gpm/SelfupgradeCommand.php b/system/src/Grav/Console/Gpm/SelfupgradeCommand.php
index ab9fec713..ac8d4d9b6 100644
--- a/system/src/Grav/Console/Gpm/SelfupgradeCommand.php
+++ b/system/src/Grav/Console/Gpm/SelfupgradeCommand.php
@@ -131,7 +131,8 @@ class SelfupgradeCommand extends GpmCommand
             $io->writeln("which was released on {$release}");
 
             $config = Grav::instance()['config'];
-            if ($config->get('versions.core.grav.schema') !== GRAV_SCHEMA) {
+            $schema = $config->get('versions.core.grav.schema');
+            if ($schema !== GRAV_SCHEMA && version_compare($schema, GRAV_SCHEMA, '<')) {
                 $io->newLine();
                 $io->writeln('However post-install scripts have not been run.');
                 if (!$this->all_yes) {
diff --git a/system/src/Grav/Console/GravCommand.php b/system/src/Grav/Console/GravCommand.php
index 41fe61c0d..4634a1fdb 100644
--- a/system/src/Grav/Console/GravCommand.php
+++ b/system/src/Grav/Console/GravCommand.php
@@ -30,7 +30,11 @@ class GravCommand extends Command
     {
         $this->setupConsole($input, $output);
 
-        $this->initializeGrav();
+        // Old versions of Grav called this command after grav upgrade.
+        // We need make this command to work with older ConsoleTrait:
+        if (method_exists($this, 'initializeGrav')) {
+            $this->initializeGrav();
+        }
 
         return $this->serve();
     }
diff --git a/system/src/Grav/Installer/Install.php b/system/src/Grav/Installer/Install.php
index 56696b218..d10427489 100644
--- a/system/src/Grav/Installer/Install.php
+++ b/system/src/Grav/Installer/Install.php
@@ -218,21 +218,16 @@ ERR;
             throw new RuntimeException('Grav has already been installed here!', 400);
         }
 
-        // Make sure that none of the Grav\Installer classes have been loaded, otherwise installation may fail!
+        // Load the installer classes.
         foreach ($this->classMap as $class_name => $path) {
+            // Make sure that none of the Grav\Installer classes have been loaded, otherwise installation may fail!
             if (class_exists($class_name, false)) {
                 throw new RuntimeException(sprintf('Cannot update Grav, class %s has already been loaded!', $class_name), 500);
             }
+
+            require $path;
         }
 
-        $grav = Grav::instance();
-
-        /** @var ClassLoader $loader */
-        $loader = $grav['loader'];
-
-        // Override Grav\Installer classes by using this version of Grav.
-        $loader->addClassMap($this->classMap);
-
         $this->legacySupport();
 
         $this->location = dirname($location, 4);
diff --git a/system/src/Grav/Installer/updates/1.7.2_2021-01-21_1.php b/system/src/Grav/Installer/updates/1.7.2_2021-01-21_1.php
deleted file mode 100644
index d10e1bec2..000000000
--- a/system/src/Grav/Installer/updates/1.7.2_2021-01-21_1.php
+++ /dev/null
@@ -1,26 +0,0 @@
-<?php
-
-use Grav\Installer\InstallException;
-use Grav\Installer\VersionUpdate;
-use Grav\Installer\YamlUpdater;
-
-return [
-    'preflight' => null,
-    'postflight' =>
-        function () {
-            // Only reset GPM releases value if upgrading from Grav 1.7 RC.
-            if (version_compare(GRAV_VERSION, '1.7', '<')) {
-                return;
-            }
-
-            /** @var VersionUpdate $this */
-            try {
-                // Keep old defaults for backwards compatibility.
-                $yaml = YamlUpdater::instance(GRAV_ROOT . '/user/config/system.yaml');
-                $yaml->undefine('gpm.releases');
-                $yaml->save();
-            } catch (\Exception $e) {
-                throw new InstallException('Could not update system configuration to maintain backwards compatibility', $e);
-            }
-        }
-];