diff --git a/Cargo.toml b/Cargo.toml
index 429295f327..109f36584d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,5 +42,6 @@ env_logger = "0.8"
 ron = "0.6"
 serde = { version = "1.0", features = ["derive"] }
 spirv = { package = "spirv_headers", version = "1.5", features = ["deserialize"] }
-insta = { version = "1.3", features = ["glob"] }
+# `similar` dependency, introduced in 1.5.3, breaks MSRV
+insta = { version = "=1.5.2", features = ["glob"] }
 rspirv = "0.7"