diff --git a/core/c/README b/core/c/README
index 229a8a83d..dbac4e158 100644
--- a/core/c/README
+++ b/core/c/README
@@ -1,5 +1,5 @@
 Prior to building the jbigi library, you will need to fetch the GMP source
-from http://www.swox.com/gmp/, saving it to jbigi/gmp-4.1.3.tar.bz2 (it will
+from http://www.swox.com/gmp/, saving it to jbigi/gmp-4.1.4.tar.bz2 (it will
 be unpacked and built as necessary).
 
 To build the native jbigi and jcpuid libraries for the current host CPU,
diff --git a/core/c/jbigi/build-all.sh b/core/c/jbigi/build-all.sh
index f3da059a0..7cfee31c6 100644
--- a/core/c/jbigi/build-all.sh
+++ b/core/c/jbigi/build-all.sh
@@ -13,7 +13,7 @@ FreeBSD*)
 esac
 
 echo "Extracting GMP..."
-tar -xjf gmp-4.1.3.tar.bz2
+tar -xjf gmp-4.1.4.tar.bz2
 echo "Building..."
 mkdir bin
 mkdir lib
@@ -24,7 +24,7 @@ for x in none pentium pentiummmx pentium2 pentium3 pentium4 k6 k62 k63 athlon
 do
 	mkdir bin/$x
 	cd bin/$x
-	../../gmp-4.1.3/configure --build=$x
+	../../gmp-4.1.4/configure --build=$x
 	make
 	sh ../../build_jbigi.sh static
 	case `uname -sr` in
diff --git a/core/c/jbigi/build.sh b/core/c/jbigi/build.sh
index 2e1852571..9f03533dd 100644
--- a/core/c/jbigi/build.sh
+++ b/core/c/jbigi/build.sh
@@ -15,7 +15,7 @@ FreeBSD*)
 esac
 
 echo "Extracting GMP..."
-tar -xjf gmp-4.1.3.tar.bz2
+tar -xjf gmp-4.1.4.tar.bz2
 echo "Building..."
 mkdir bin
 mkdir lib
@@ -24,7 +24,7 @@ mkdir lib/net/i2p
 mkdir lib/net/i2p/util
 mkdir bin/local
 cd bin/local
-../../gmp-4.1.3/configure
+../../gmp-4.1.4/configure
 make
 sh ../../build_jbigi.sh static
 case `uname -sr` in