diff --git a/Cargo.lock b/Cargo.lock
index d8fe72d..ab79fe8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -152,9 +152,9 @@ dependencies = [
 
 [[package]]
 name = "gmp-mpfr-sys"
-version = "1.4.7"
+version = "1.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a146a7357ce9573bdcc416fc4a99b960e166e72d8eaffa7c59966d51866b5bfb"
+checksum = "b3d00b0ef965511028498a1668c4a6ef9b0b2501a4a5ab26fb8156408869306e"
 dependencies = [
  "libc",
  "winapi",