diff --git a/platformio/__init__.py b/platformio/__init__.py
index e7774802..6d0d609a 100644
--- a/platformio/__init__.py
+++ b/platformio/__init__.py
@@ -14,7 +14,7 @@
 
 import sys
 
-VERSION = (3, 3, "0a15")
+VERSION = (3, 3, "0a16")
 __version__ = ".".join([str(s) for s in VERSION])
 
 __title__ = "platformio"
diff --git a/platformio/managers/package.py b/platformio/managers/package.py
index 8e1b9725..5f7b37d8 100644
--- a/platformio/managers/package.py
+++ b/platformio/managers/package.py
@@ -553,6 +553,7 @@ class BasePkgManager(PkgRepoMixin, PkgInstallerMixin):
         # skip a fixed package to a specific version
         if "@" in pkg_dir and "__src_url" not in manifest:
             return None
+
         if "__src_url" in manifest:
             try:
                 vcs = VCSClientFactory.newClient(
@@ -571,14 +572,18 @@ class BasePkgManager(PkgRepoMixin, PkgInstallerMixin):
                     silent=True)
             except (exception.PlatformioException, ValueError):
                 return None
+
         if not latest:
             return None
+
         up_to_date = False
         try:
+            assert "__src_url" not in manifest
             up_to_date = (semantic_version.Version.coerce(manifest['version'])
                           >= semantic_version.Version.coerce(latest))
-        except ValueError:
+        except (AssertionError, ValueError):
             up_to_date = latest == manifest['version']
+
         return False if up_to_date else latest
 
     def install(self,