diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8d8f465d..cce047e0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@
 * Add: option [storage] folder_umask for configuration of umask (overwrite system-default)
 * Fix: also remove 'item' from cache on delete
 * Improve: avoid automatically invalid cache on upgrade in case no change on cache structure
+* Improve: log important module versions on startup
 
 ## 3.3.1
 
diff --git a/radicale/server.py b/radicale/server.py
index 80e58fd3..23396330 100644
--- a/radicale/server.py
+++ b/radicale/server.py
@@ -301,7 +301,7 @@ def serve(configuration: config.Configuration,
 
     """
 
-    logger.info("Starting Radicale")
+    logger.info("Starting Radicale (%s)", utils.packages_version())
     # Copy configuration before modifying
     configuration = configuration.copy()
     configuration.update({"server": {"_internal_server": "True"}}, "server",
diff --git a/radicale/utils.py b/radicale/utils.py
index 50a8d822..1223d330 100644
--- a/radicale/utils.py
+++ b/radicale/utils.py
@@ -26,6 +26,7 @@ from radicale.log import logger
 
 _T_co = TypeVar("_T_co", covariant=True)
 
+RADICALE_MODULES: Sequence[str] = ("radicale", "vobject", "passlib", "defusedxml")
 
 def load_plugin(internal_types: Sequence[str], module_name: str,
                 class_name: str, base_class: Type[_T_co],
@@ -50,6 +51,11 @@ def load_plugin(internal_types: Sequence[str], module_name: str,
 def package_version(name):
     return metadata.version(name)
 
+def packages_version():
+    versions = []
+    for pkg in RADICALE_MODULES:
+        versions.append("%s=%s" % (pkg, package_version(pkg)))
+    return " ".join(versions)
 
 def ssl_context_options_by_protocol(protocol: str, ssl_context_options):
     logger.debug("SSL protocol string: '%s' and current SSL context options: '0x%x'", protocol, ssl_context_options)