diff --git a/python/Cargo.toml b/python/Cargo.toml
index 9d1101ea..58c8fe75 100644
--- a/python/Cargo.toml
+++ b/python/Cargo.toml
@@ -7,7 +7,7 @@ license.workspace = true
 repository.workspace = true
 keywords.workspace = true
 categories.workspace = true
-
+rust-version = "1.75.0"
 
 [lib]
 name = "_lancedb"
diff --git a/rust/ffi/node/Cargo.toml b/rust/ffi/node/Cargo.toml
index a129f6bc..b798ef23 100644
--- a/rust/ffi/node/Cargo.toml
+++ b/rust/ffi/node/Cargo.toml
@@ -8,6 +8,7 @@ repository.workspace = true
 keywords.workspace = true
 categories.workspace = true
 exclude = ["index.node"]
+rust-version = "1.75"
 
 [lib]
 crate-type = ["cdylib"]
diff --git a/rust/lancedb/Cargo.toml b/rust/lancedb/Cargo.toml
index 3ca835ab..fa8a6619 100644
--- a/rust/lancedb/Cargo.toml
+++ b/rust/lancedb/Cargo.toml
@@ -7,6 +7,7 @@ license.workspace = true
 repository.workspace = true
 keywords.workspace = true
 categories.workspace = true
+rust-version = "1.75"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 [dependencies]