diff --git a/Cargo-minimal.lock b/Cargo-minimal.lock
index fb048b8c..01f89427 100644
--- a/Cargo-minimal.lock
+++ b/Cargo-minimal.lock
@@ -72,7 +72,7 @@ dependencies = [
 
 [[package]]
 name = "bitcoin-io"
-version = "0.1.0"
+version = "0.1.1"
 
 [[package]]
 name = "bitcoin-units"
diff --git a/Cargo-recent.lock b/Cargo-recent.lock
index ceda6598..79b6aee4 100644
--- a/Cargo-recent.lock
+++ b/Cargo-recent.lock
@@ -71,7 +71,7 @@ dependencies = [
 
 [[package]]
 name = "bitcoin-io"
-version = "0.1.0"
+version = "0.1.1"
 
 [[package]]
 name = "bitcoin-units"
diff --git a/bitcoin/Cargo.toml b/bitcoin/Cargo.toml
index 5aede3ab..823e9aa0 100644
--- a/bitcoin/Cargo.toml
+++ b/bitcoin/Cargo.toml
@@ -33,7 +33,7 @@ hashes = { package = "bitcoin_hashes", version = "0.13.0", default-features = fa
 hex = { package = "hex-conservative", version = "0.1.1", default-features = false, features = ["alloc"] }
 hex_lit = "0.1.1"
 internals = { package = "bitcoin-internals", version = "0.2.0" }
-io = { package = "bitcoin-io", version = "0.1", default-features = false, features = ["alloc"] }
+io = { package = "bitcoin-io", version = "0.1.1", default-features = false, features = ["alloc"] }
 secp256k1 = { version = "0.28.0", default-features = false, features = ["hashes", "alloc"] }
 units = { package = "bitcoin-units", version = "0.1.0", default-features = false, features = ["alloc"] }
 
diff --git a/hashes/Cargo.toml b/hashes/Cargo.toml
index bbe6b292..70a6758e 100644
--- a/hashes/Cargo.toml
+++ b/hashes/Cargo.toml
@@ -29,7 +29,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 [dependencies]
 hex = { package = "hex-conservative", version = "0.1.1", default-features = false }
 
-bitcoin-io = { version = "0.1", default-features = false, optional = true }
+bitcoin-io = { version = "0.1.1", default-features = false, optional = true }
 schemars = { version = "0.8.3", default-features = false, optional = true }
 serde = { version = "1.0", default-features = false, optional = true }
 
diff --git a/io/CHANGELOG.md b/io/CHANGELOG.md
index af90b40d..d22f978a 100644
--- a/io/CHANGELOG.md
+++ b/io/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.1 - Initial Release - 2023-01-18
+# 0.1.1 - Initial Release - 2024-02-18
 
 Create the `io` crate, add basic I/O traits, types, and implementations.
 
@@ -13,3 +13,7 @@ Types:
 - `Take`
 - `Cursor`
 - `Sink`
+
+# 0.1.0 - Placeholder release
+
+Empty crate to reserve the name on crates.io
\ No newline at end of file
diff --git a/io/Cargo.toml b/io/Cargo.toml
index f73b0c78..6fe07dc5 100644
--- a/io/Cargo.toml
+++ b/io/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "bitcoin-io"
-version = "0.1.0"
+version = "0.1.1"
 authors = ["Matt Corallo <birchneutea@mattcorallo.com>"]
 license = "CC0-1.0"
 repository = "https://github.com/rust-bitcoin/rust-bitcoin"