diff --git a/.gitignore b/.gitignore
index 53a8e08..ad5877e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,3 +51,4 @@
 /MCE-1.840.tar.gz
 /MCE-1.841.tar.gz
 /MCE-1.842.tar.gz
+/MCE-1.843.tar.gz
diff --git a/perl-MCE.spec b/perl-MCE.spec
index 8e591b3..2b2d86b 100644
--- a/perl-MCE.spec
+++ b/perl-MCE.spec
@@ -1,5 +1,5 @@
 Name:           perl-MCE
-Version:        1.842
+Version:        1.843
 Release:        1%{?dist}
 Summary:        Many-core Engine for Perl providing parallel processing capabilities
 License:        GPL+ or Artistic
@@ -167,6 +167,12 @@ make test
 %{_bindir}/mce_zfgrep
 
 %changelog
+* Wed Jul 24 2019 Paul Howarth <paul@city-fan.org> - 1.843-1
+- Update to 1.843
+  - Updated results in MCE::Child (Parallel::ForkManager-like demonstration)
+  - Completed missing interrupt signal-safety for the non-blocking methods in
+    MCE::Channel::Mutex and MCE::Channel::Threads
+
 * Mon Jul 22 2019 Paul Howarth <paul@city-fan.org> - 1.842-1
 - Update to 1.842
   - Fixed race condition abnormalities in MCE::Child
diff --git a/sources b/sources
index 81250e0..247d5d7 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (MCE-1.842.tar.gz) = e77c54f5fd4cbeee851c2967dad2fa9800ffbf24ffdb5ea69f042da036be766c11b19ca7cdc5f5da36925833429a74b3d81307dc7de9828efb51447b09c7f04c
+SHA512 (MCE-1.843.tar.gz) = df8fd55d3a98646ff7c4252dd3f60fbe5610e80fc6541717137c6b642b1d50dec02c8459313e901ea115d5fe842e6b4f6a3a9dfa9bc6856020f4deff274165f2