diff --git a/rust-runtime/inlineable/Cargo.toml b/rust-runtime/inlineable/Cargo.toml
index 5ba64d76cdfa5ec2bcee00e440ee36779e11dbb6..a3b03707d0caeaedc0dd51cdbf875a7794a9f4da 100644
--- a/rust-runtime/inlineable/Cargo.toml
+++ b/rust-runtime/inlineable/Cargo.toml
@@ -17,4 +17,4 @@ are to allow this crate to be compilable and testable in isolation, no client co
 "fastrand" = "1"
 
 [dev-dependencies]
-proptest = "0.10.1"
+proptest = "1"
diff --git a/rust-runtime/smithy-http/Cargo.toml b/rust-runtime/smithy-http/Cargo.toml
index 8f7d63dc31092c9c324c759bcdb69ccd797e8700..6740ee425490757b5cb33d9c8913e63497d2ed68 100644
--- a/rust-runtime/smithy-http/Cargo.toml
+++ b/rust-runtime/smithy-http/Cargo.toml
@@ -13,5 +13,5 @@ http = "0.2.3"
 thiserror = "1"
 
 [dev-dependencies]
-proptest = "0.10.1"
+proptest = "1"
 base64 = "0.13.0"
diff --git a/rust-runtime/smithy-types/Cargo.toml b/rust-runtime/smithy-types/Cargo.toml
index 7f4968aa1219668e3afb953dbee07f2a5598f9c0..f72038167279f5b181f7909f9e6e44a9575bbf08 100644
--- a/rust-runtime/smithy-types/Cargo.toml
+++ b/rust-runtime/smithy-types/Cargo.toml
@@ -10,4 +10,4 @@ license = "Apache-2.0"
 chrono = { version = "0.4", default-features = false, features = ["alloc"] }
 
 [dev-dependencies]
-proptest = "0.10.1"
+proptest = "1"