diff --git a/Cargo.toml b/Cargo.toml
index 4bee49aa..f35d86e5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,6 +4,9 @@ members = ["crates/*", "examples/*", "xtask"]
 default-members = ["crates/*"]
 resolver = "2"
 
+[workspace.package]
+rust-version = "1.64"
+
 [workspace.dependencies]
 assert_matches2 = "0.1.0"
 assign = "1.1.1"
diff --git a/crates/ruma-appservice-api/Cargo.toml b/crates/ruma-appservice-api/Cargo.toml
index f50c3063..1252bf55 100644
--- a/crates/ruma-appservice-api/Cargo.toml
+++ b/crates/ruma-appservice-api/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 version = "0.8.1"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-client-api/Cargo.toml b/crates/ruma-client-api/Cargo.toml
index 3d6c4849..0b835bab 100644
--- a/crates/ruma-client-api/Cargo.toml
+++ b/crates/ruma-client-api/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 version = "0.16.2"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-client/Cargo.toml b/crates/ruma-client/Cargo.toml
index 779eab94..5f6c3a2d 100644
--- a/crates/ruma-client/Cargo.toml
+++ b/crates/ruma-client/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 version = "0.11.0"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-common/Cargo.toml b/crates/ruma-common/Cargo.toml
index 99085aa6..a91736ed 100644
--- a/crates/ruma-common/Cargo.toml
+++ b/crates/ruma-common/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT"
 readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-federation-api/Cargo.toml b/crates/ruma-federation-api/Cargo.toml
index 0a5bbf5d..71c22ba4 100644
--- a/crates/ruma-federation-api/Cargo.toml
+++ b/crates/ruma-federation-api/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 version = "0.7.1"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-identifiers-validation/Cargo.toml b/crates/ruma-identifiers-validation/Cargo.toml
index 8871922a..ce144edb 100644
--- a/crates/ruma-identifiers-validation/Cargo.toml
+++ b/crates/ruma-identifiers-validation/Cargo.toml
@@ -6,7 +6,7 @@ repository = "https://github.com/ruma/ruma"
 license = "MIT"
 version = "0.9.1"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-identity-service-api/Cargo.toml b/crates/ruma-identity-service-api/Cargo.toml
index 542a969c..cf33b016 100644
--- a/crates/ruma-identity-service-api/Cargo.toml
+++ b/crates/ruma-identity-service-api/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT"
 readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-macros/Cargo.toml b/crates/ruma-macros/Cargo.toml
index 07a78962..dd417b9d 100644
--- a/crates/ruma-macros/Cargo.toml
+++ b/crates/ruma-macros/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 version = "0.11.3"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [lib]
 proc-macro = true
diff --git a/crates/ruma-push-gateway-api/Cargo.toml b/crates/ruma-push-gateway-api/Cargo.toml
index f4e7d9ba..5978d780 100644
--- a/crates/ruma-push-gateway-api/Cargo.toml
+++ b/crates/ruma-push-gateway-api/Cargo.toml
@@ -8,7 +8,7 @@ license = "MIT"
 readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-server-util/Cargo.toml b/crates/ruma-server-util/Cargo.toml
index 03cd25ad..1f6e37bf 100644
--- a/crates/ruma-server-util/Cargo.toml
+++ b/crates/ruma-server-util/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 repository = "https://github.com/ruma/ruma"
 version = "0.1.1"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma-state-res/Cargo.toml b/crates/ruma-state-res/Cargo.toml
index 7596abde..15f2d394 100644
--- a/crates/ruma-state-res/Cargo.toml
+++ b/crates/ruma-state-res/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 license = "MIT"
 version = "0.9.1"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true
diff --git a/crates/ruma/Cargo.toml b/crates/ruma/Cargo.toml
index 41e3d2f9..7155293c 100644
--- a/crates/ruma/Cargo.toml
+++ b/crates/ruma/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 license = "MIT"
 version = "0.8.2"
 edition = "2021"
-rust-version = "1.64"
+rust-version = { workspace = true }
 
 [package.metadata.docs.rs]
 all-features = true