diff --git a/.github/workflows/integration_tests.yml b/.github/workflows/integration_tests.yml
index ac22966..5906ede 100644
--- a/.github/workflows/integration_tests.yml
+++ b/.github/workflows/integration_tests.yml
@@ -1,5 +1,7 @@
 name: Integration Tests
 
+permissions: read-all
+
 on:
   workflow_call:
     inputs:
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index d2df255..b272f4d 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -2,6 +2,8 @@ name: Build, tests & soundness checks
 
 on: [pull_request, workflow_dispatch]
 
+permissions: read-all
+
 jobs:
   swift-bedrock-library:
     runs-on: ubuntu-latest
diff --git a/.github/workflows/swift-6-language-mode.yml b/.github/workflows/swift-6-language-mode.yml
index 818e9f4..8bc3043 100644
--- a/.github/workflows/swift-6-language-mode.yml
+++ b/.github/workflows/swift-6-language-mode.yml
@@ -1,5 +1,7 @@
 name: Swift 6 language mode
 
+permissions: read-all
+
 on:
   workflow_call:
 
diff --git a/Package.swift b/Package.swift
index b68b61d..64e913a 100644
--- a/Package.swift
+++ b/Package.swift
@@ -11,10 +11,10 @@ let package = Package(
     ],
     dependencies: [
         .package(url: "https://github.com/apple/swift-argument-parser.git", from: "1.6.1"),
-        .package(url: "https://github.com/awslabs/aws-sdk-swift", from: "1.5.16"),
-        .package(url: "https://github.com/smithy-lang/smithy-swift", from: "0.152.0"),
+        .package(url: "https://github.com/awslabs/aws-sdk-swift", from: "1.5.51"),
+        .package(url: "https://github.com/smithy-lang/smithy-swift", from: "0.158.0"),
         .package(url: "https://github.com/apple/swift-log.git", from: "1.6.4"),
-        .package(url: "https://github.com/awslabs/aws-crt-swift", from: "0.52.1"),
+        .package(url: "https://github.com/awslabs/aws-crt-swift", from: "0.53.0"),
     ],
     targets: [
         .target(
diff --git a/Sources/Models/Anthropic/AnthropicBedrockModels.swift b/Sources/Models/Anthropic/AnthropicBedrockModels.swift
index 0bd8ff1..5a88979 100644
--- a/Sources/Models/Anthropic/AnthropicBedrockModels.swift
+++ b/Sources/Models/Anthropic/AnthropicBedrockModels.swift
@@ -30,6 +30,7 @@ typealias ClaudeV3_5Sonnet = AnthropicText
 typealias ClaudeV3_7Sonnet = AnthropicText
 typealias Claude_Sonnet_v4 = AnthropicText
 typealias Claude_Opus_v4 = AnthropicText
+typealias Claude_Sonnet_v4_5 = AnthropicText
 
 // text
 // https://docs.aws.amazon.com/bedrock/latest/userguide/model-parameters-anthropic-claude-messages.html
@@ -219,4 +220,20 @@ extension BedrockModel {
             maxReasoningTokens: Parameter(.maxReasoningTokens, minValue: 1_024, maxValue: 8_191, defaultValue: 4_096)
         )
     )
+    public static let claude_sonnet_v4_5: BedrockModel = BedrockModel(
+        id: "anthropic.claude-sonnet-4-5-20250929-v1:0",
+        name: "Claude Sonnet v4.5",
+        modality: Claude_Sonnet_v4_5(
+            parameters: TextGenerationParameters(
+                temperature: Parameter(.temperature, minValue: 0, maxValue: 1, defaultValue: 1),
+                maxTokens: Parameter(.maxTokens, minValue: 1, maxValue: 64_000, defaultValue: 8_192),
+                topP: Parameter(.topP, minValue: 0, maxValue: 1, defaultValue: 0.999),
+                topK: Parameter(.topK, minValue: 0, maxValue: 500, defaultValue: 0),
+                stopSequences: StopSequenceParams(maxSequences: 8191, defaultValue: []),
+                maxPromptSize: 200_000
+            ),
+            features: [.textGeneration, .systemPrompts, .document, .vision, .toolUse, .reasoning],
+            maxReasoningTokens: Parameter(.maxReasoningTokens, minValue: 1_024, maxValue: 8_191, defaultValue: 4_096)
+        )
+    )
 }