diff --git a/NEWS b/NEWS
index 54972ba..d52ed2f 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,7 @@
 yubico-piv-tool NEWS -- History of user-visible changes.        -*- outline -*-
 
+* Version 1.3.1 (unreleased)
+
 * Version 1.3.0 (released 2016-02-19)
 
 ** Fixed extraction of RSA modulus and exponent for pkcs11.
diff --git a/configure.ac b/configure.ac
index 29a8b19..52795cc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -26,7 +26,7 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 
-AC_INIT([yubico-piv-tool], [1.3.0])
+AC_INIT([yubico-piv-tool], [1.3.1])
 AC_CONFIG_AUX_DIR([build-aux])
 AC_CONFIG_MACRO_DIR([m4])
 
@@ -35,7 +35,7 @@ AC_CONFIG_MACRO_DIR([m4])
 # Interfaces added:                             AGE++
 # Interfaces removed:                           AGE=0
 AC_SUBST([LT_CURRENT], 4)
-AC_SUBST([LT_REVISION], 0)
+AC_SUBST([LT_REVISION], 1)
 AC_SUBST([LT_AGE], 3)
 
 AM_INIT_AUTOMAKE([-Wall -Werror foreign])