diff --git a/CMakeLists.txt b/CMakeLists.txt
index dd3d8eb9..4b71c303 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1370,7 +1370,7 @@ else()
     # NOTE: the SOVERSION and VERSION MUST be the same as the one generated by libtool! It is NOT the same as the
     # version of the package.
     set_target_properties(
-      libzmq PROPERTIES COMPILE_DEFINITIONS "DLL_EXPORT" PUBLIC_HEADER "${public_headers}" VERSION "5.2.4"
+      libzmq PROPERTIES COMPILE_DEFINITIONS "DLL_EXPORT" PUBLIC_HEADER "${public_headers}" VERSION "5.2.5"
                         SOVERSION "5" OUTPUT_NAME "${ZMQ_OUTPUT_BASENAME}" PREFIX "lib")
     if(ZMQ_BUILD_FRAMEWORK)
       set_target_properties(
diff --git a/NEWS b/NEWS
index c52a1d48..ab4f7668 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,4 @@
-0MQ version 4.3.4 stable, released on 2020/01/17
+0MQ version 4.3.4 stable, released on 2021/01/17
 ================================================
 
 * New DRAFT (see NEWS for 4.2.0) socket option:
diff --git a/configure.ac b/configure.ac
index 4f6bc863..15863eeb 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,9 +52,10 @@ AC_SUBST(PACKAGE_VERSION)
 # ZeroMQ version 4.3.2: 7:2:2 (ABI version 5)
 # ZeroMQ version 4.3.3: 7:3:2 (ABI version 5)
 # ZeroMQ version 4.3.4: 7:4:2 (ABI version 5)
+# ZeroMQ version 4.3.5: 7:5:2 (ABI version 5)
 #
 # libzmq -version-info current:revision:age
-LTVER="7:4:2"
+LTVER="7:5:2"
 AC_SUBST(LTVER)
 
 # Take a copy of original flags
diff --git a/include/zmq.h b/include/zmq.h
index d05659f7..683cb6a1 100644
--- a/include/zmq.h
+++ b/include/zmq.h
@@ -41,7 +41,7 @@
 /*  Version macros for compile-time API version detection                     */
 #define ZMQ_VERSION_MAJOR 4
 #define ZMQ_VERSION_MINOR 3
-#define ZMQ_VERSION_PATCH 4
+#define ZMQ_VERSION_PATCH 5
 
 #define ZMQ_MAKE_VERSION(major, minor, patch)                                  \
     ((major) *10000 + (minor) *100 + (patch))
diff --git a/packaging/debian/changelog b/packaging/debian/changelog
index 7e8af92d..2e7a1832 100644
--- a/packaging/debian/changelog
+++ b/packaging/debian/changelog
@@ -1,4 +1,4 @@
-zeromq (4.3.4-0.1) UNRELEASED; urgency=low
+zeromq (4.3.5-0.1) UNRELEASED; urgency=low
 
   * Initial packaging.
 
diff --git a/packaging/debian/zeromq.dsc.obs b/packaging/debian/zeromq.dsc.obs
index a11727bc..2b289713 100644
--- a/packaging/debian/zeromq.dsc.obs
+++ b/packaging/debian/zeromq.dsc.obs
@@ -2,7 +2,7 @@ Format: 3.0 (quilt)
 Source: zeromq
 Binary: libzmq5, libzmq3-dev, libzmq5-dbg
 Architecture: any
-Version: 4.3.4-0.1
+Version: 4.3.5-0.1
 Maintainer: libzmq Developers <zeromq-dev@lists.zeromq.org>
 Homepage: http://www.zeromq.org/
 Standards-Version: 3.9.8
diff --git a/packaging/redhat/zeromq.spec b/packaging/redhat/zeromq.spec
index ce4bedac..67963c0e 100644
--- a/packaging/redhat/zeromq.spec
+++ b/packaging/redhat/zeromq.spec
@@ -10,7 +10,7 @@
 %endif
 %define lib_name libzmq5
 Name:          zeromq
-Version:       4.3.4
+Version:       4.3.5
 Release:       1%{?dist}
 Summary:       The ZeroMQ messaging library
 Group:         Applications/Internet