diff --git a/sdk/aws-smithy-types-convert/Cargo.toml b/sdk/aws-smithy-types-convert/Cargo.toml
index eb7cd122d083..c49bd8d2c39b 100644
--- a/sdk/aws-smithy-types-convert/Cargo.toml
+++ b/sdk/aws-smithy-types-convert/Cargo.toml
@@ -23,6 +23,8 @@ version = "0.51.0"
 [dependencies.chrono]
 version = "0.4.19"
 optional = true
+default-features = false
+features = ["std"]
 
 [dependencies.time]
 version = "0.3.4"
diff --git a/versions.toml b/versions.toml
index d3d3e40ac96d..a50bbdd24243 100644
--- a/versions.toml
+++ b/versions.toml
@@ -1,4 +1,4 @@
-smithy_rs_revision = '4c852b1d0b4456493869db13a934eecb5c81657b'
+smithy_rs_revision = 'f0b7f55bf515f85bdb72975f355e297badc8a2f4'
 aws_doc_sdk_examples_revision = 'f88a0edba3961f9d978bf1727054c9414e4fca2b'
 
 [manual_interventions]
@@ -1976,7 +1976,7 @@ source_hash = '468361bba3a588959443cb5fb71680a6688f7cccb2f2e3201edc9613ee6d5952'
 [crates.aws-smithy-types-convert]
 category = 'SmithyRuntime'
 version = '0.51.0'
-source_hash = '47874f8822fa4c70b759b752c340add633d6b0857095079d5393c659da76b2b0'
+source_hash = '0702131196d06d3c0f0a43b004cb28be7938923d2b0b39e8b9d17e2611d10caf'
 
 [crates.aws-smithy-xml]
 category = 'SmithyRuntime'