diff --git a/projects/plugins/backup/changelog/add-protect-threat-history b/projects/plugins/backup/changelog/add-protect-threat-history
deleted file mode 100644
index 9aa70e3ec1f75..0000000000000
--- a/projects/plugins/backup/changelog/add-protect-threat-history
+++ /dev/null
@@ -1,5 +0,0 @@
-Significance: patch
-Type: changed
-Comment: Updated composer.lock.
-
-
diff --git a/projects/plugins/backup/composer.lock b/projects/plugins/backup/composer.lock
index 7d4086114a0b7..2774dcc20ff67 100644
--- a/projects/plugins/backup/composer.lock
+++ b/projects/plugins/backup/composer.lock
@@ -1438,7 +1438,7 @@
             "dist": {
                 "type": "path",
                 "url": "../../packages/protect-models",
-                "reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+                "reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
             },
             "require": {
                 "php": ">=7.0"
@@ -1455,7 +1455,7 @@
             "extra": {
                 "autotagger": true,
                 "branch-alias": {
-                    "dev-trunk": "0.2.x-dev"
+                    "dev-trunk": "0.1.x-dev"
                 },
                 "changelogger": {
                     "link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/boost/composer.lock b/projects/plugins/boost/composer.lock
index 6ace0692d2274..b83adb234cf08 100644
--- a/projects/plugins/boost/composer.lock
+++ b/projects/plugins/boost/composer.lock
@@ -1422,7 +1422,7 @@
             "dist": {
                 "type": "path",
                 "url": "../../packages/protect-models",
-                "reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+                "reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
             },
             "require": {
                 "php": ">=7.0"
@@ -1439,7 +1439,7 @@
             "extra": {
                 "autotagger": true,
                 "branch-alias": {
-                    "dev-trunk": "0.2.x-dev"
+                    "dev-trunk": "0.1.x-dev"
                 },
                 "changelogger": {
                     "link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/jetpack/composer.lock b/projects/plugins/jetpack/composer.lock
index 7bc088953c313..1f63a75ddbc1e 100644
--- a/projects/plugins/jetpack/composer.lock
+++ b/projects/plugins/jetpack/composer.lock
@@ -2084,7 +2084,7 @@
 			"dist": {
 				"type": "path",
 				"url": "../../packages/protect-models",
-				"reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+				"reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
 			},
 			"require": {
 				"php": ">=7.0"
@@ -2101,7 +2101,7 @@
 			"extra": {
 				"autotagger": true,
 				"branch-alias": {
-					"dev-trunk": "0.2.x-dev"
+					"dev-trunk": "0.1.x-dev"
 				},
 				"changelogger": {
 					"link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/migration/composer.lock b/projects/plugins/migration/composer.lock
index 11484453ed6c7..4f5f0620f5232 100644
--- a/projects/plugins/migration/composer.lock
+++ b/projects/plugins/migration/composer.lock
@@ -1438,7 +1438,7 @@
             "dist": {
                 "type": "path",
                 "url": "../../packages/protect-models",
-                "reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+                "reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
             },
             "require": {
                 "php": ">=7.0"
@@ -1455,7 +1455,7 @@
             "extra": {
                 "autotagger": true,
                 "branch-alias": {
-                    "dev-trunk": "0.2.x-dev"
+                    "dev-trunk": "0.1.x-dev"
                 },
                 "changelogger": {
                     "link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/search/composer.lock b/projects/plugins/search/composer.lock
index 8173964c6cbdd..235f86dbb59d5 100644
--- a/projects/plugins/search/composer.lock
+++ b/projects/plugins/search/composer.lock
@@ -1294,7 +1294,7 @@
             "dist": {
                 "type": "path",
                 "url": "../../packages/protect-models",
-                "reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+                "reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
             },
             "require": {
                 "php": ">=7.0"
@@ -1311,7 +1311,7 @@
             "extra": {
                 "autotagger": true,
                 "branch-alias": {
-                    "dev-trunk": "0.2.x-dev"
+                    "dev-trunk": "0.1.x-dev"
                 },
                 "changelogger": {
                     "link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/social/composer.lock b/projects/plugins/social/composer.lock
index b91e589289ad0..5ee5a4db55302 100644
--- a/projects/plugins/social/composer.lock
+++ b/projects/plugins/social/composer.lock
@@ -1356,7 +1356,7 @@
 			"dist": {
 				"type": "path",
 				"url": "../../packages/protect-models",
-				"reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+				"reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
 			},
 			"require": {
 				"php": ">=7.0"
@@ -1373,7 +1373,7 @@
 			"extra": {
 				"autotagger": true,
 				"branch-alias": {
-					"dev-trunk": "0.2.x-dev"
+					"dev-trunk": "0.1.x-dev"
 				},
 				"changelogger": {
 					"link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/starter-plugin/composer.lock b/projects/plugins/starter-plugin/composer.lock
index 8955730ff1c2a..7997e296902c6 100644
--- a/projects/plugins/starter-plugin/composer.lock
+++ b/projects/plugins/starter-plugin/composer.lock
@@ -1294,7 +1294,7 @@
             "dist": {
                 "type": "path",
                 "url": "../../packages/protect-models",
-                "reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+                "reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
             },
             "require": {
                 "php": ">=7.0"
@@ -1311,7 +1311,7 @@
             "extra": {
                 "autotagger": true,
                 "branch-alias": {
-                    "dev-trunk": "0.2.x-dev"
+                    "dev-trunk": "0.1.x-dev"
                 },
                 "changelogger": {
                     "link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/videopress/composer.lock b/projects/plugins/videopress/composer.lock
index 6a203abae2151..919b97236bb86 100644
--- a/projects/plugins/videopress/composer.lock
+++ b/projects/plugins/videopress/composer.lock
@@ -1294,7 +1294,7 @@
             "dist": {
                 "type": "path",
                 "url": "../../packages/protect-models",
-                "reference": "7acb119f496f32361379b236b6dbbcca68680d4d"
+                "reference": "a79c18207b3476214e4be25eb5184c452c952ea9"
             },
             "require": {
                 "php": ">=7.0"
@@ -1311,7 +1311,7 @@
             "extra": {
                 "autotagger": true,
                 "branch-alias": {
-                    "dev-trunk": "0.2.x-dev"
+                    "dev-trunk": "0.1.x-dev"
                 },
                 "changelogger": {
                     "link-template": "https://github.com/Automattic/jetpack-protect-models/compare/v${old}...v${new}"
diff --git a/projects/plugins/wpcomsh/composer.json b/projects/plugins/wpcomsh/composer.json
index 3b3f7dec0adea..2a274920f23ce 100644
--- a/projects/plugins/wpcomsh/composer.json
+++ b/projects/plugins/wpcomsh/composer.json
@@ -128,7 +128,7 @@
 			"composer/installers": true,
 			"roots/wordpress-core-installer": true
 		},
-		"autoloader-suffix": "26841ac2064774301cbe06d174833bfc_wpcomshⓥ5_1_2_alpha"
+		"autoloader-suffix": "26841ac2064774301cbe06d174833bfc_wpcomshⓥ5_1_1"
 	},
 	"extra": {
 		"mirror-repo": "Automattic/wpcom-site-helper",
diff --git a/projects/plugins/wpcomsh/package.json b/projects/plugins/wpcomsh/package.json
index 7b7b61907ef5d..de9cd4ef2f088 100644
--- a/projects/plugins/wpcomsh/package.json
+++ b/projects/plugins/wpcomsh/package.json
@@ -3,7 +3,7 @@
 	"name": "@automattic/jetpack-wpcomsh",
 	"description": "A helper for connecting WordPress.com sites to external host infrastructure.",
 	"homepage": "https://jetpack.com",
-	"version": "5.1.2-alpha",
+	"version": "5.1.1",
 	"bugs": {
 		"url": "https://github.com/Automattic/jetpack/labels/[Plugin] Wpcomsh"
 	},
diff --git a/projects/plugins/wpcomsh/wpcomsh.php b/projects/plugins/wpcomsh/wpcomsh.php
index 377e08b2a8344..b152dbeed752b 100644
--- a/projects/plugins/wpcomsh/wpcomsh.php
+++ b/projects/plugins/wpcomsh/wpcomsh.php
@@ -2,14 +2,14 @@
 /**
  * Plugin Name: WordPress.com Site Helper
  * Description: A helper for connecting WordPress.com sites to external host infrastructure.
- * Version: 5.1.2-alpha
+ * Version: 5.1.1
  * Author: Automattic
  * Author URI: http://automattic.com/
  *
  * @package wpcomsh
  */
 
-define( 'WPCOMSH_VERSION', '5.1.2-alpha' );
+define( 'WPCOMSH_VERSION', '5.1.1' );
 
 // If true, Typekit fonts will be available in addition to Google fonts
 add_filter( 'jetpack_fonts_enable_typekit', '__return_true' );