diff --git a/pyproject.toml b/pyproject.toml
index 204c8e78d..8388683e6 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -39,7 +39,7 @@ dev = [
   "phir>=0.3.3",
   "polars>=1.0.0",     # DataFrame library for examples/benchmarks
   # WebAssembly runtimes for testing
-  "wasmtime>=13.0",
+  "wasmtime>=43.0.0",
   "jupyter>=1.1.1",
 ]
 test = [ # pinning testing environment