diff --git a/src/packaging/specifiers.py b/src/packaging/specifiers.py
index 1f3adaf6..b30926af 100644
--- a/src/packaging/specifiers.py
+++ b/src/packaging/specifiers.py
@@ -234,7 +234,7 @@ def __init__(self, spec: str = "", prereleases: bool | None = None) -> None:
         """
         match = self._regex.search(spec)
         if not match:
-            raise InvalidSpecifier(f"Invalid specifier: '{spec}'")
+            raise InvalidSpecifier(f"Invalid specifier: {spec!r}")
 
         self._spec: tuple[str, str] = (
             match.group("operator").strip(),
diff --git a/src/packaging/version.py b/src/packaging/version.py
index edee1004..fc5573f7 100644
--- a/src/packaging/version.py
+++ b/src/packaging/version.py
@@ -199,7 +199,7 @@ def __init__(self, version: str) -> None:
         # Validate the version and parse it into pieces
         match = self._regex.search(version)
         if not match:
-            raise InvalidVersion(f"Invalid version: '{version}'")
+            raise InvalidVersion(f"Invalid version: {version!r}")
 
         # Store the parsed out pieces of the version
         self._version = _Version(