diff --git a/CHANGELOG.next.toml b/CHANGELOG.next.toml
index 4f6d377e31..3e1b71dce8 100644
--- a/CHANGELOG.next.toml
+++ b/CHANGELOG.next.toml
@@ -46,3 +46,9 @@ message = "Added support for SSO bearer token authentication. The aws-sdk-codeca
 references = ["aws-sdk-rust#703", "smithy-rs#3453"]
 meta = { "breaking" = false, "bug" = false, "tada" = true }
 author = "jdisanti"
+
+[[smithy-rs]]
+message = "Upgrade Smithy to 1.45."
+references = ["smithy-rs#3470"]
+meta = { "breaking" = false, "tada" = false, "bug" = false, "target" = "all" }
+authors = ["jdisanti"]
diff --git a/codegen-client-test/model/rest-xml-extras.smithy b/codegen-client-test/model/rest-xml-extras.smithy
index 2c18a35e92..b518ad09c6 100644
--- a/codegen-client-test/model/rest-xml-extras.smithy
+++ b/codegen-client-test/model/rest-xml-extras.smithy
@@ -21,8 +21,6 @@ service RestXmlExtras {
         StringHeader,
         CreateFoo,
         RequiredMember,
-        // TODO(https://github.com/smithy-lang/smithy-rs/issues/3315)
-        ZeroAndFalseQueryParams,
     ]
 }
 
@@ -256,32 +254,3 @@ structure RequiredMemberInputOutput {
     @required
     requiredString: String
 }
-
-@httpRequestTests([
-    {
-        id: "RestXmlZeroAndFalseQueryParamsAreSerialized"
-        protocol: restXml
-        code: 200
-        method: "GET"
-        uri: "/ZeroAndFalseQueryParams"
-        body: ""
-        queryParams: [
-            "Zero=0",
-            "False=false"
-        ]
-        params: {
-            zeroValue: 0
-            falseValue: false
-        }
-    }
-])
-@http(uri: "/ZeroAndFalseQueryParams", method: "GET")
-operation ZeroAndFalseQueryParams {
-    input := {
-        @httpQuery("Zero")
-        zeroValue: Integer
-
-        @httpQuery("False")
-        falseValue: Boolean
-    }
-}
diff --git a/codegen-core/common-test-models/rest-json-extras.smithy b/codegen-core/common-test-models/rest-json-extras.smithy
index 2667cad6c4..ad49300167 100644
--- a/codegen-core/common-test-models/rest-json-extras.smithy
+++ b/codegen-core/common-test-models/rest-json-extras.smithy
@@ -8,7 +8,7 @@ use smithy.test#httpRequestTests
 use smithy.test#httpResponseTests
 use smithy.framework#ValidationException
 
-// TODO(https://github.com/smithy-lang/smithy/pull/2132): Remove this test once it's fixed in Smithy
+// TODO(https://github.com/smithy-lang/smithy/pull/2167): Remove this test once it's fixed in Smithy
 apply AllQueryStringTypes @httpRequestTests([
     {
         id: "RestJsonZeroAndFalseQueryValuesFixed"
@@ -25,8 +25,8 @@ apply AllQueryStringTypes @httpRequestTests([
             queryInteger: 0
             queryBoolean: false
             queryParamsMapOfStringList: {
-                queryInteger: ["0"]
-                queryBoolean: ["false"]
+                Integer: ["0"]
+                Boolean: ["false"]
             }
         }
     }
@@ -89,11 +89,9 @@ service RestJsonExtras {
         NullInNonSparse,
         CaseInsensitiveErrorOperation,
         EmptyStructWithContentOnWireOp,
-        // TODO(https://github.com/smithy-lang/smithy-rs/issues/2968): Remove the following once these tests are included in Smithy
-        // They're being added in https://github.com/smithy-lang/smithy/pull/1908
-        HttpPayloadWithUnion,
-        // TODO(https://github.com/smithy-lang/smithy-rs/issues/3315)
-        ZeroAndFalseQueryParams,
+        QueryPrecedence,
+        // TODO(https://github.com/smithy-lang/smithy/pull/2167): Remove this test once it's fixed in Smithy
+        AllQueryStringTypes,
     ],
     errors: [ExtraError]
 }
@@ -377,33 +375,3 @@ structure EmptyStructWithContentOnWireOpOutput {
 operation EmptyStructWithContentOnWireOp {
     output: EmptyStructWithContentOnWireOpOutput,
 }
-@http(uri: "/zero-and-false-query-params", method: "GET")
-@httpRequestTests([
-    {
-        id: "RestJsonZeroAndFalseQueryParamsAreSerialized",
-        protocol: restJson1,
-        code: 200,
-        method: "GET",
-        uri: "/zero-and-false-query-params",
-        body: "",
-        queryParams: [
-            "Zero=0",
-            "False=false"
-        ],
-        params: {
-            zeroValue: 0,
-            falseValue: false
-        }
-    }
-])
-operation ZeroAndFalseQueryParams {
-    input: ZeroAndFalseQueryParamsInput
-}
-
-structure ZeroAndFalseQueryParamsInput {
-    @httpQuery("Zero")
-    zeroValue: Integer
-
-    @httpQuery("False")
-    falseValue: Boolean
-}
diff --git a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/protocol/ServerProtocolTestGenerator.kt b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/protocol/ServerProtocolTestGenerator.kt
index e72ff691dd..b5678277c8 100644
--- a/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/protocol/ServerProtocolTestGenerator.kt
+++ b/codegen-server/src/main/kotlin/software/amazon/smithy/rust/codegen/server/smithy/generators/protocol/ServerProtocolTestGenerator.kt
@@ -805,6 +805,7 @@ class ServerProtocolTestGenerator(
         private const val AwsJson11 = "aws.protocoltests.json#JsonProtocol"
         private const val AwsJson10 = "aws.protocoltests.json10#JsonRpc10"
         private const val RestJson = "aws.protocoltests.restjson#RestJson"
+        private const val RestJsonExtras = "aws.protocoltests.restjson#RestJsonExtras"
         private const val RestJsonValidation = "aws.protocoltests.restjson.validation#RestJsonValidation"
         private val ExpectFail: Set<FailingTest> =
             setOf(
@@ -812,8 +813,10 @@ class ServerProtocolTestGenerator(
                 FailingTest(RestJson, "RestJsonEndpointTrait", TestType.Request),
                 FailingTest(RestJson, "RestJsonEndpointTraitWithHostLabel", TestType.Request),
                 FailingTest(RestJson, "RestJsonOmitsEmptyListQueryValues", TestType.Request),
-                // TODO(https://github.com/smithy-lang/smithy/pull/2132): Remove this failing test once it's fixed in Smithy
+                // TODO(https://github.com/smithy-lang/smithy/pull/2167): BEGIN Remove this failing test once it's fixed in Smithy
                 FailingTest(RestJson, "RestJsonZeroAndFalseQueryValues", TestType.Request),
+                FailingTest(RestJsonExtras, "RestJsonZeroAndFalseQueryValues", TestType.Request),
+                // TODO(https://github.com/smithy-lang/smithy/pull/2167): END Remove this failing test once it's fixed in Smithy
                 // Tests involving `@range` on floats.
                 // Pending resolution from the Smithy team, see https://github.com/smithy-lang/smithy-rs/issues/2007.
                 FailingTest(RestJsonValidation, "RestJsonMalformedRangeFloat_case0", TestType.MalformedRequest),
diff --git a/gradle.properties b/gradle.properties
index 9ab85ef4ee..d5e5184bdb 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -21,7 +21,7 @@ kotlin.code.style=official
 
 # codegen
 smithyGradlePluginVersion=0.9.0
-smithyVersion=1.44.0
+smithyVersion=1.45.0
 
 # kotlin
 kotlinVersion=1.9.20
diff --git a/rust-runtime/aws-smithy-runtime/src/client/orchestrator.rs b/rust-runtime/aws-smithy-runtime/src/client/orchestrator.rs
index 680c5df235..f8bbc2c05c 100644
--- a/rust-runtime/aws-smithy-runtime/src/client/orchestrator.rs
+++ b/rust-runtime/aws-smithy-runtime/src/client/orchestrator.rs
@@ -3,9 +3,6 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
-// TODO(msrvUpgrade): This can be removed once we upgrade the MSRV to Rust 1.69
-#![allow(unknown_lints)]
-
 use self::auth::orchestrate_auth;
 use crate::client::interceptors::Interceptors;
 use crate::client::orchestrator::endpoints::orchestrate_endpoint;