diff --git a/package/czmq/czmq-0001-Use-_DEFAULT_SOURCE-instead-of-_BSD_SOURCE.patch b/package/czmq/czmq-0001-Use-_DEFAULT_SOURCE-instead-of-_BSD_SOURCE.patch
deleted file mode 100644
index cef187a2b..000000000
--- a/package/czmq/czmq-0001-Use-_DEFAULT_SOURCE-instead-of-_BSD_SOURCE.patch
+++ /dev/null
@@ -1,53 +0,0 @@
-From 04be584035b4d9b6a61fd748b6d21c92c6bb9694 Mon Sep 17 00:00:00 2001
-From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
-Date: Tue, 9 Sep 2014 23:36:10 +0200
-Subject: [PATCH] Use _DEFAULT_SOURCE instead of _BSD_SOURCE
-
-Since glibc 2.20, using _BSD_SOURCE triggers a warning, and since czmq
-uses -Werror, it aborts the build:
-
-  CC       zchunk.lo
-In file included from /home/thomas/projets/buildroot/output/host/usr/nios2-buildroot-linux-gnu/sysroot/usr/include/ctype.h:25:0,
-                 from ../include/czmq_prelude.h:203,
-                 from ../include/czmq.h:19,
-                 from zauth.c:25:
-/home/thomas/projets/buildroot/output/host/usr/nios2-buildroot-linux-gnu/sysroot/usr/include/features.h:148:3: error: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE" [-Werror=cpp]
- # warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
-   ^
-
-See the glibc 2.20 release notes, https://lwn.net/Articles/611162/,
-explaining the change about _BSD_SOURCE:
-
-* The _BSD_SOURCE and _SVID_SOURCE feature test macros are no longer
-  supported; they now act the same as _DEFAULT_SOURCE (but generate a
-  warning).  Except for cases where _BSD_SOURCE enabled BSD interfaces that
-  conflicted with POSIX (support for which was removed in 2.19), the
-  interfaces those macros enabled remain available when compiling with
-  _GNU_SOURCE defined, with _DEFAULT_SOURCE defined, or without any feature
-  test macros defined.
-
-Submitted upstream: https://github.com/zeromq/czmq/pull/648
-
-Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
----
- include/czmq_prelude.h | 4 ++--
- 1 file changed, 2 insertions(+), 2 deletions(-)
-
-diff --git a/include/czmq_prelude.h b/include/czmq_prelude.h
-index 8b4b53d..f77add2 100644
---- a/include/czmq_prelude.h
-+++ b/include/czmq_prelude.h
-@@ -152,8 +152,8 @@
- #   ifndef __NO_CTYPE
- #   define __NO_CTYPE                   //  Suppress warnings on tolower()
- #   endif
--#   ifndef _BSD_SOURCE
--#   define _BSD_SOURCE                  //  Include stuff from 4.3 BSD Unix
-+#   ifndef _DEFAULT_SOURCE
-+#   define _DEFAULT_SOURCE                  //  Include stuff from 4.3 BSD Unix
- #   endif
- #elif (defined (Mips))
- #   define __UTYPE_MIPS
--- 
-2.0.0
-
diff --git a/package/czmq/czmq.mk b/package/czmq/czmq.mk
index 9bc4a2a29..d25bf01c6 100644
--- a/package/czmq/czmq.mk
+++ b/package/czmq/czmq.mk
@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-CZMQ_VERSION = v2.2.0
+CZMQ_VERSION = v3.0.0
 CZMQ_SITE = $(call github,zeromq,czmq,$(CZMQ_VERSION))
 
 # Autoreconf required as we use the git tree