diff --git a/loom-core/Cargo.toml b/loom-core/Cargo.toml
index 965b220..d5fed18 100644
--- a/loom-core/Cargo.toml
+++ b/loom-core/Cargo.toml
@@ -42,7 +42,7 @@ rayon = "1"
 [dev-dependencies]
 proptest = { workspace = true }
 criterion = "0.8"
-wasmtime = "45.0"
+wasmtime = "46.0"
 
 [features]
 # Default features - verification enabled for safety
diff --git a/loom-testing/Cargo.toml b/loom-testing/Cargo.toml
index 6ed0f6f..120b93d 100644
--- a/loom-testing/Cargo.toml
+++ b/loom-testing/Cargo.toml
@@ -21,7 +21,7 @@ rand = "0.8"
 loom-core = { path = "../loom-core" }
 
 # Optional runtime dependencies (not available for wasm targets)
-wasmtime = { version = "45.0", optional = true }
+wasmtime = { version = "46.0", optional = true }
 tempfile = { version = "3.8", optional = true }
 which = { version = "8.0", optional = true }
 glob = { version = "0.3", optional = true }