diff --git a/Cargo.toml b/Cargo.toml
index d1e57f89..f69dbc4f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,10 @@
 [workspace]
 default-members = ["cli"]
-
 members = ["cli", "lib"]
+resolver = "2"
+
+[workspace.package]
+rust-version = "1.65"
 
 [profile.release]
 strip = true
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 47e03284..f9f8ca4b 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -9,6 +9,7 @@ readme = "README.md"
 keywords = ["incremental", "parsing"]
 categories = ["command-line-utilities", "parsing"]
 repository = "https://github.com/tree-sitter/tree-sitter"
+rust-version.workspace = true
 
 [[bin]]
 name = "tree-sitter"
diff --git a/cli/config/Cargo.toml b/cli/config/Cargo.toml
index ab3808ad..114d6ce8 100644
--- a/cli/config/Cargo.toml
+++ b/cli/config/Cargo.toml
@@ -9,6 +9,7 @@ readme = "README.md"
 keywords = ["incremental", "parsing"]
 categories = ["command-line-utilities", "parsing"]
 repository = "https://github.com/tree-sitter/tree-sitter"
+rust-version.workspace = true
 
 [dependencies]
 anyhow = "1.0"
diff --git a/cli/loader/Cargo.toml b/cli/loader/Cargo.toml
index 3a665ea9..6af28f30 100644
--- a/cli/loader/Cargo.toml
+++ b/cli/loader/Cargo.toml
@@ -9,6 +9,7 @@ readme = "README.md"
 keywords = ["incremental", "parsing"]
 categories = ["command-line-utilities", "parsing"]
 repository = "https://github.com/tree-sitter/tree-sitter"
+rust-version.workspace = true
 
 [dependencies]
 anyhow = "1.0"
diff --git a/cli/src/tests/proc_macro/Cargo.toml b/cli/src/tests/proc_macro/Cargo.toml
index a9a2b146..e6900d10 100644
--- a/cli/src/tests/proc_macro/Cargo.toml
+++ b/cli/src/tests/proc_macro/Cargo.toml
@@ -3,6 +3,7 @@ name = "proc_macro"
 version = "0.1.0"
 edition = "2021"
 publish = false
+rust-version.workspace = true
 
 [lib]
 proc-macro = true
diff --git a/highlight/Cargo.toml b/highlight/Cargo.toml
index 0b0de18e..e85ced8e 100644
--- a/highlight/Cargo.toml
+++ b/highlight/Cargo.toml
@@ -12,6 +12,7 @@ edition = "2018"
 keywords = ["incremental", "parsing", "syntax", "highlighting"]
 categories = ["parsing", "text-editors"]
 repository = "https://github.com/tree-sitter/tree-sitter"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["lib", "staticlib"]
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 16fd0254..39e07916 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -9,6 +9,7 @@ readme = "binding_rust/README.md"
 keywords = ["incremental", "parsing"]
 categories = ["api-bindings", "parsing", "text-editors"]
 repository = "https://github.com/tree-sitter/tree-sitter"
+rust-version.workspace = true
 
 build = "binding_rust/build.rs"
 
diff --git a/tags/Cargo.toml b/tags/Cargo.toml
index d954a573..99d053e8 100644
--- a/tags/Cargo.toml
+++ b/tags/Cargo.toml
@@ -12,6 +12,7 @@ edition = "2018"
 keywords = ["incremental", "parsing", "syntax", "tagging"]
 categories = ["parsing", "text-editors"]
 repository = "https://github.com/tree-sitter/tree-sitter"
+rust-version.workspace = true
 
 [lib]
 crate-type = ["lib", "staticlib"]