diff --git a/Makefile.am b/Makefile.am
index 3082bdb3..8c6b5bb4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -62,6 +62,12 @@ AUTOMAKE_OPTIONS = 1.8 gnu no-dependencies ansi2knr
 #        4.2      6:0:3    3:2:0   4:4:1	REALLY WRONG, same as 4.1!
 #        4.2.1    7:1:4    4:1:1   4:10:1
 #
+#	  MPIR	   -version-info
+#       release   libgmp  libgmpxx libmp
+#        0.9.0    7:1:4    4:1:1   4:10:1   WRONG, same as GMP 4.2.1
+#        1.0.0    7:2:4    4:2:1   4:11:1
+#        1.1.0    7:3:4    4:3:1   4:12:1
+#
 # Starting at 3:0:0 is a slight abuse of the versioning system, but it
 # ensures we're past soname libgmp.so.2, which was used on Debian GNU/Linux
 # packages of gmp 2.  Pretend gmp 2 was 2:0:0, so the interface changes for
@@ -74,15 +80,15 @@ AUTOMAKE_OPTIONS = 1.8 gnu no-dependencies ansi2knr
 # libgmpxx.so.3.0.4) incrementing, to make it clear which GMP it's from.
 
 LIBGMP_LT_CURRENT =  7
-LIBGMP_LT_REVISION = 1
+LIBGMP_LT_REVISION = 3
 LIBGMP_LT_AGE =      4
 
 LIBGMPXX_LT_CURRENT =  4
-LIBGMPXX_LT_REVISION = 1
+LIBGMPXX_LT_REVISION = 3
 LIBGMPXX_LT_AGE =      1
 
 LIBMP_LT_CURRENT =  4
-LIBMP_LT_REVISION = 10
+LIBMP_LT_REVISION = 12
 LIBMP_LT_AGE =      1