diff --git a/.gitignore b/.gitignore
index fde2d02..63683a0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -43,3 +43,4 @@
 /MCE-1.831.tar.gz
 /MCE-1.832.tar.gz
 /MCE-1.833.tar.gz
+/MCE-1.834.tar.gz
diff --git a/MCE-1.830-Sereal-deps.patch b/MCE-1.834-Sereal-deps.patch
similarity index 91%
rename from MCE-1.830-Sereal-deps.patch
rename to MCE-1.834-Sereal-deps.patch
index e728321..3409068 100644
--- a/MCE-1.830-Sereal-deps.patch
+++ b/MCE-1.834-Sereal-deps.patch
@@ -5,7 +5,7 @@ Upstream's syntax is mis-parsed by the rpm dependency generator as a hard requir
 @@ -36,10 +36,7 @@ BEGIN {
     $_oid = "$$.$_tid";
  
-    if ($] ge '5.008008' && !exists $INC{'PDL.pm'}) {
+    if ($] ge '5.008008' && !$INC{'PDL.pm'}) {
 -      eval '
 -         use Sereal::Encoder 3.015 qw( encode_sereal );
 -         use Sereal::Decoder 3.015 qw( decode_sereal );
diff --git a/perl-MCE.spec b/perl-MCE.spec
index 4cd15f9..9054db6 100644
--- a/perl-MCE.spec
+++ b/perl-MCE.spec
@@ -1,12 +1,12 @@
 Name:           perl-MCE
-Version:        1.833
+Version:        1.834
 Release:        1%{?dist}
 Summary:        Many-core Engine for Perl providing parallel processing capabilities
 License:        GPL+ or Artistic
 URL:            http://search.cpan.org/dist/MCE/
 Source0:        http://www.cpan.org/authors/id/M/MA/MARIOROY/MCE-%{version}.tar.gz
 Patch0:         MCE-1.818-Fix-sharp-bang-line.patch
-Patch1:         MCE-1.830-Sereal-deps.patch
+Patch1:         MCE-1.834-Sereal-deps.patch
 BuildArch:      noarch
 # Module Build
 BuildRequires:  coreutils
@@ -153,6 +153,13 @@ make test
 %{_bindir}/mce_zfgrep
 
 %changelog
+* Tue Jan 23 2018 Paul Howarth <paul@city-fan.org> - 1.834-1
+- Update to 1.834
+  - Improved Queue await and dequeue performance on the Windows platform
+  - Added chameneos-redux parallel demonstrations on Github:
+    https://github.com/marioroy/mce-examples/tree/master/chameneos
+- Rebase Sereal-deps patch
+
 * Sun Dec 31 2017 Paul Howarth <paul@city-fan.org> - 1.833-1
 - Update to 1.833
   - Fixed bug with sequence, broken in 1.832 (GH#10)
diff --git a/sources b/sources
index 8c40cfa..1b5132b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (MCE-1.833.tar.gz) = 3d77b7f3cd501b68685e3478fc95685edcbe03cddff8abc403a076f1a245aff7a301316d9b90c9c7fc547d26b8f13bd919c7e7c4dec7e2f5520259d91f7c453e
+SHA512 (MCE-1.834.tar.gz) = 73bf929ebf99150d946763abde1fa137fb8f220d5b9d189785f7fc36cb16d813ebfc34bb2901e97542295693b4aff3d4f0f0b43019ce0684e003ac1561ac3d40