diff --git a/libp2p/Cargo.toml b/libp2p/Cargo.toml
index f02ec1c6..5cb8741a 100644
--- a/libp2p/Cargo.toml
+++ b/libp2p/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "libp2p"
 edition = "2021"
-rust-version = "1.65.0"
+rust-version = { workspace = true }
 description = "Peer-to-peer networking library"
 version = "0.52.3"
 authors = ["Parity Technologies <admin@parity.io>"]
diff --git a/misc/metrics/Cargo.toml b/misc/metrics/Cargo.toml
index e93d1f66..1ea026a9 100644
--- a/misc/metrics/Cargo.toml
+++ b/misc/metrics/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "libp2p-metrics"
 edition = "2021"
-rust-version = "1.65.0"
+rust-version = { workspace = true }
 description = "Metrics for libp2p"
 version = "0.13.1"
 authors = ["Max Inden <mail@max-inden.de>"]
diff --git a/protocols/kad/Cargo.toml b/protocols/kad/Cargo.toml
index 80e8946f..fa937033 100644
--- a/protocols/kad/Cargo.toml
+++ b/protocols/kad/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "libp2p-kad"
 edition = "2021"
-rust-version = "1.65.0"
+rust-version = { workspace = true }
 description = "Kademlia protocol for libp2p"
 version = "0.44.4"
 authors = ["Parity Technologies <admin@parity.io>"]
diff --git a/swarm-test/Cargo.toml b/swarm-test/Cargo.toml
index 7b3faa45..67753b1c 100644
--- a/swarm-test/Cargo.toml
+++ b/swarm-test/Cargo.toml
@@ -2,7 +2,7 @@
 name = "libp2p-swarm-test"
 version = "0.2.0"
 edition = "2021"
-rust-version = "1.65.0"
+rust-version = { workspace = true }
 license = "MIT"
 description = "Test framework for code building on top of libp2p-swarm"
 repository = "https://github.com/libp2p/rust-libp2p"