diff --git a/Cargo.lock b/Cargo.lock
index 63a6391c..eaed41ba 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -114,6 +114,12 @@ dependencies = [
  "autocfg",
 ]
 
+[[package]]
+name = "once_cell"
+version = "1.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "da32515d9f6e6e489d7bc9d84c71b060db7247dc035bbe44eac88cf87486d8d5"
+
 [[package]]
 name = "output_vt100"
 version = "0.1.2"
@@ -378,12 +384,12 @@ dependencies = [
 
 [[package]]
 name = "trybuild"
-version = "1.0.52"
+version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "150e726dc059e6fbd4fce3288f5bb3cf70128cf63b0dde23b938a3cad810fb23"
+checksum = "2d60539445867cdd9680b2bfe2d0428f1814b7d5c9652f09d8d3eae9d19308db"
 dependencies = [
  "glob",
- "lazy_static",
+ "once_cell",
  "serde",
  "serde_json",
  "termcolor",
diff --git a/propfuzz/Cargo.toml b/propfuzz/Cargo.toml
index 907dd1bf..69cbff84 100644
--- a/propfuzz/Cargo.toml
+++ b/propfuzz/Cargo.toml
@@ -24,7 +24,7 @@ propfuzz-macro = { path = "../propfuzz-macro", version = "0.0.1", optional = tru
 
 [dev-dependencies]
 pretty_assertions = "1.0.0"
-trybuild = "1.0.52"
+trybuild = "1.0.56"
 
 [features]
 default = ["macro"]