diff --git a/Gemfile.lock b/Gemfile.lock
index 2cc6bca6..edd84554 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    docker-sync (0.4.5.beta1)
+    docker-sync (0.4.5)
       daemons (~> 1.2, >= 1.2.3)
       docker-compose (~> 1.0, >= 1.0.2)
       dotenv (~> 2.1, >= 2.1.1)
diff --git a/lib/docker-sync/config/project_config.rb b/lib/docker-sync/config/project_config.rb
index 837906b7..e2858e47 100644
--- a/lib/docker-sync/config/project_config.rb
+++ b/lib/docker-sync/config/project_config.rb
@@ -58,6 +58,11 @@ def rsync_required?
       }
     end
 
+    def fswatch_required?
+      config['syncs'].any? { |name, sync_config|
+        sync_config['watch_strategy'] == 'fswatch'
+      }
+    end
 
     private
 
diff --git a/lib/docker-sync/dependencies.rb b/lib/docker-sync/dependencies.rb
index 84bf3b7f..2f7b9383 100644
--- a/lib/docker-sync/dependencies.rb
+++ b/lib/docker-sync/dependencies.rb
@@ -19,15 +19,9 @@ def self.ensure_all!(config)
     def self.ensure_all_for_mac!(config)
       PackageManager.ensure!
       Docker.ensure!
-
-      if config.unison_required?
-        Unison.ensure!
-      end
-
-      if config.rsync_required?
-        Rsync.ensure!
-        Fswatch.ensure!
-      end
+      Unison.ensure!  if config.unison_required?
+      Rsync.ensure!   if config.rsync_required?
+      Fswatch.ensure! if config.fswatch_required?
     end
 
     def self.ensure_all_for_linux!(_config)