diff --git a/Cargo.lock b/Cargo.lock
index bb82f8d..73916ee 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -78,9 +78,9 @@ checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
 [[package]]
 name = "chacha20"
-version = "0.10.0-rc.3"
+version = "0.10.0-rc.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3585020fc6766ef7ff5c58d69819dbca16a19008ae347bb5d3e4e145c495eb38"
+checksum = "99cbf41c6ec3c4b9eaf7f8f5c11a72cd7d3aa0428125c20d5ef4d09907a0f019"
 dependencies = [
  "cfg-if",
  "cpufeatures",
@@ -404,9 +404,9 @@ checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
 [[package]]
 name = "rand"
-version = "0.10.0-rc.1"
+version = "0.10.0-rc.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e7d245ced4538f0406b1579d3d4a6515a2ff1bdf20733492e2e4fc90a648769"
+checksum = "be866deebbade98028b705499827ad6967c8bb1e21f96a2609913c8c076e9307"
 dependencies = [
  "chacha20",
  "getrandom",
diff --git a/aucpace/Cargo.toml b/aucpace/Cargo.toml
index 6566036..32a5951 100644
--- a/aucpace/Cargo.toml
+++ b/aucpace/Cargo.toml
@@ -21,7 +21,7 @@ rand_core = { version = "0.10.0-rc.2", default-features = false }
 subtle = { version = "2.4", default-features = false }
 
 # optional dependencies
-rand = { version = "0.10.0-rc.1", optional = true }
+rand = { version = "0.10.0-rc.5", optional = true }
 serde = { version = "1.0.184", default-features = false, optional = true, features = ["derive"] }
 serde-byte-array = { version = "0.1", optional = true }
 scrypt = { version = "0.12.0-rc.3", default-features = false, optional = true, features = ["simple"] }
diff --git a/spake2/Cargo.toml b/spake2/Cargo.toml
index 549154c..9ba9336 100644
--- a/spake2/Cargo.toml
+++ b/spake2/Cargo.toml
@@ -21,7 +21,7 @@ sha2 = { version = "0.11.0-rc.3", default-features = false }
 hkdf = { version = "0.13.0-rc.3", default-features = false }
 
 # optional dependencies
-rand = { version = "0.10.0-rc.1", optional = true }
+rand = { version = "0.10.0-rc.5", optional = true }
 
 [dev-dependencies]
 bencher = "0.1"
diff --git a/srp/Cargo.toml b/srp/Cargo.toml
index 68e4d1b..0103466 100644
--- a/srp/Cargo.toml
+++ b/srp/Cargo.toml
@@ -21,6 +21,6 @@ subtle = "2.4"
 [dev-dependencies]
 hex-literal = "1"
 num-traits = "0.2"
-rand = "0.10.0-rc.1"
+rand = "0.10.0-rc.5"
 sha1 = "0.11.0-rc.3"
 sha2 = "0.11.0-rc.3"