diff --git a/src/loaih/build.py b/src/loaih/build.py
index 93b69d0..227e4f7 100644
--- a/src/loaih/build.py
+++ b/src/loaih/build.py
@@ -562,13 +562,16 @@ class Build():
 
             if len(debian_packages) != 0:
                 # We need, first, to download those packages.
-                debs = [ x.split(":")[0] for x in debian_packages ]
+                debs = [ x.split(':')[0] for x in debian_packages ]
                 downloadpath = os.path.abspath(os.path.join(self.builddir, 'dependencies'))
                 os.makedirs(downloadpath)
                 
                 if self.verbose:
                     print("Downloading missing dependencies, please wait.")
 
+                # Updating package cache
+                subprocess.run(['apt', 'update'], check=True)
+
                 # We download the missing dependencies leveraging apt
                 subprocess.run(shlex.split(
                     r"apt download " + " ".join(debs)