diff --git a/Cargo.lock b/Cargo.lock
index 971b8c1f..be8b3862 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -189,7 +189,7 @@ dependencies = [
 [[package]]
 name = "crypto-primes"
 version = "0.7.0-dev"
-source = "git+https://github.com/tarcieri/crypto-primes?branch=crypto-bigint%2Fv0.7.0-rc.12#a96b3c9e40db97dfd3df73d9368ff096292fcb16"
+source = "git+https://github.com/tarcieri/crypto-primes?branch=crypto-bigint%2Fv0.7.0-rc.13#f98697886371aa15446ca53ef5b9e9e44efbabf8"
 dependencies = [
  "crypto-bigint",
  "libm",
diff --git a/Cargo.toml b/Cargo.toml
index c3d376a9..31d7b8f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -70,5 +70,5 @@ opt-level = 2
 debug = true
 
 [patch.crates-io]
-crypto-primes = { git = "https://github.com/tarcieri/crypto-primes", branch = "crypto-bigint/v0.7.0-rc.12" }
+crypto-primes = { git = "https://github.com/tarcieri/crypto-primes", branch = "crypto-bigint/v0.7.0-rc.13" }
 rand = { git = "https://github.com/rust-random/rand" }