diff --git a/Cargo.toml b/Cargo.toml
index d0c6bfd85..8a8dc4abf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam"
 # - Create "crossbeam-X.Y.Z" git tag
 version = "0.8.1"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam"
diff --git a/crossbeam-channel/Cargo.toml b/crossbeam-channel/Cargo.toml
index 39e9f7a84..f30b6275c 100644
--- a/crossbeam-channel/Cargo.toml
+++ b/crossbeam-channel/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam-channel"
 # - Create "crossbeam-channel-X.Y.Z" git tag
 version = "0.5.1"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-channel"
diff --git a/crossbeam-deque/Cargo.toml b/crossbeam-deque/Cargo.toml
index 9493865d1..f303a2f15 100644
--- a/crossbeam-deque/Cargo.toml
+++ b/crossbeam-deque/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam-deque"
 # - Create "crossbeam-deque-X.Y.Z" git tag
 version = "0.8.1"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-deque"
diff --git a/crossbeam-epoch/Cargo.toml b/crossbeam-epoch/Cargo.toml
index 11b6d084c..5b2173c8f 100644
--- a/crossbeam-epoch/Cargo.toml
+++ b/crossbeam-epoch/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam-epoch"
 # - Create "crossbeam-epoch-X.Y.Z" git tag
 version = "0.9.5"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-epoch"
diff --git a/crossbeam-queue/Cargo.toml b/crossbeam-queue/Cargo.toml
index 5f91e0792..47bdbd7d0 100644
--- a/crossbeam-queue/Cargo.toml
+++ b/crossbeam-queue/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam-queue"
 # - Create "crossbeam-queue-X.Y.Z" git tag
 version = "0.3.2"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-queue"
diff --git a/crossbeam-skiplist/Cargo.toml b/crossbeam-skiplist/Cargo.toml
index 7c6b3198f..0e0053882 100644
--- a/crossbeam-skiplist/Cargo.toml
+++ b/crossbeam-skiplist/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam-skiplist"
 # - Create "crossbeam-skiplist-X.Y.Z" git tag
 version = "0.0.0"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-skiplist"
diff --git a/crossbeam-utils/Cargo.toml b/crossbeam-utils/Cargo.toml
index ff25463a0..2a2e64e31 100644
--- a/crossbeam-utils/Cargo.toml
+++ b/crossbeam-utils/Cargo.toml
@@ -6,6 +6,7 @@ name = "crossbeam-utils"
 # - Create "crossbeam-utils-X.Y.Z" git tag
 version = "0.8.5"
 edition = "2018"
+rust-version = "1.36"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/crossbeam-rs/crossbeam"
 homepage = "https://github.com/crossbeam-rs/crossbeam/tree/master/crossbeam-utils"