diff --git a/Cargo.lock b/Cargo.lock
index ff156b8..47acd24 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -58,7 +58,7 @@ dependencies = [
 
 [[package]]
 name = "cbc"
-version = "0.2.0-rc.3"
+version = "0.2.0-rc.4"
 dependencies = [
  "aes",
  "cipher",
@@ -129,7 +129,7 @@ dependencies = [
 
 [[package]]
 name = "ctr"
-version = "0.10.0-rc.3"
+version = "0.10.0-rc.4"
 dependencies = [
  "aes",
  "cipher",
diff --git a/cbc/Cargo.toml b/cbc/Cargo.toml
index 3a8d5f8..de0eb5b 100644
--- a/cbc/Cargo.toml
+++ b/cbc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cbc"
-version = "0.2.0-rc.3"
+version = "0.2.0-rc.4"
 description = "Cipher Block Chaining (CBC) block cipher mode of operation"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"
diff --git a/ctr/Cargo.toml b/ctr/Cargo.toml
index 910cc38..f2e0a4e 100644
--- a/ctr/Cargo.toml
+++ b/ctr/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ctr"
-version = "0.10.0-rc.3"
+version = "0.10.0-rc.4"
 description = "CTR block modes of operation"
 authors = ["RustCrypto Developers"]
 license = "MIT OR Apache-2.0"