diff --git a/.gitignore b/.gitignore
index 13d79ad..c3deaf8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,8 @@
-Clone-0.31.tar.gz
+/Clone-0.31.tar.gz
 /Clone-0.34.tar.gz
 /Clone-0.36.tar.gz
 /Clone-0.38.tar.gz
 /Clone-0.39.tar.gz
 /Clone-0.39-clean.tar.gz
+/Clone-0.40.tar.gz
+/Clone-0.40-clean.tar.gz
diff --git a/perl-Clone.spec b/perl-Clone.spec
index fb94da1..bcba2d0 100644
--- a/perl-Clone.spec
+++ b/perl-Clone.spec
@@ -1,11 +1,12 @@
 Name:           perl-Clone
-Version:        0.39
-Release:        9%{?dist}
+Version:        0.40
+Release:        1%{?dist}
 Summary:        Recursively copy perl data types
 License:        GPL+ or Artistic
 URL:            https://metacpan.org/release/Clone
 # remove non-free test files
-# rm -rf t/dclone.t t/tied.pl t/dump.pl
+# rm -f t/dclone.t t/tied.pl t/dump.pl
+# sed -i -E -e '/^t\/(dclone\.t|tied\.pl|dump\.pl)/d' MANIFEST
 #Source0:        https://cpan.metacpan.org/authors/id/G/GA/GARU/Clone-%%{version}.tar.gz
 Source0:        Clone-%{version}-clean.tar.gz
 # Build
@@ -67,14 +68,20 @@ find %{buildroot} -type f -name '*.bs' -empty -delete
 make test
 
 %files
-%doc Changes README
+%doc Changes
 %{perl_vendorarch}/auto/Clone/
 %{perl_vendorarch}/Clone.pm
 %{_mandir}/man3/Clone.3*
 
 %changelog
+* Wed Oct 24 2018 Paul Howarth <paul@city-fan.org> - 0.40-1
+- Update to 0.40
+  - Reuse COWed PV when cloning (fixes CPAN RT#97535)
+  - Extra protection against potential infinite loop
+  - Improved tests
+
 * Thu Oct  4 2018 Tom Callaway <spot@fedoraproject.org> - 0.39-9
-- remove non-free test files (bz1600131)
+- Remove non-free test files (bz1600131)
 
 * Fri Jul 13 2018 Fedora Release Engineering <releng@fedoraproject.org> - 0.39-8
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_29_Mass_Rebuild
diff --git a/sources b/sources
index 4962072..20efb67 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (Clone-0.39-clean.tar.gz) = 647e45a2acbb2a6872f831943219af00c5fd7670fb8204255d3f33bbb151fbcf53ecdd090547e6e8ac55f5681e7d905d75964564875fa8a693568bdfb64882fd
+SHA512 (Clone-0.40-clean.tar.gz) = 5f73a932224a86ac660054dd84ba329ba70717750a4613e961bdcb3ca836a92436b29216bbbc38feff129d0c0b3911bea8bded4d47bfcf9e6ae06298cba6a5ad