diff --git a/configure.ac b/configure.ac
index 0b31f2c94..c56bbf04a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -46,7 +46,7 @@ AC_SUBST(PA_PROTOCOL_VERSION, 33)
 
 # The stable ABI for client applications, for the version info x:y:z
 # always will hold y=z
-AC_SUBST(LIBPULSE_VERSION_INFO, [21:0:21])
+AC_SUBST(LIBPULSE_VERSION_INFO, [21:1:21])
 
 # A simplified, synchronous, ABI-stable interface for client
 # applications, for the version info x:y:z always will hold y=z
diff --git a/meson.build b/meson.build
index abe401968..45df103f0 100644
--- a/meson.build
+++ b/meson.build
@@ -23,7 +23,7 @@ pa_protocol_version = 33
 
 # The stable ABI for client applications, for the version info x:y:z
 # always will hold y=z
-libpulse_version_info = [21, 0, 21]
+libpulse_version_info = [21, 1, 21]
 
 # A simplified, synchronous, ABI-stable interface for client
 # applications, for the version info x:y:z always will hold y=z