diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2cea25a..7d0cb72 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,7 +14,7 @@ jobs:
     name: Unit tests
     uses: apple/swift-nio/.github/workflows/unit_tests.yml@main
     with:
-      linux_nightly_next_enabled: false
+      linux_nightly_next_enabled: true
       linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
       windows_6_0_enabled: false
       windows_6_1_enabled: false
@@ -42,7 +42,7 @@ jobs:
       linux_5_10_enabled: false
       linux_6_0_enabled: false
       linux_6_1_enabled: false
-      linux_nightly_next_enabled: false
+      linux_nightly_next_enabled: true
       windows_6_0_enabled: false
       windows_6_1_enabled: false
       windows_nightly_next_enabled: false
diff --git a/.github/workflows/pull_request.yml b/.github/workflows/pull_request.yml
index 60d979c..cc281e6 100644
--- a/.github/workflows/pull_request.yml
+++ b/.github/workflows/pull_request.yml
@@ -13,14 +13,14 @@ jobs:
     uses: swiftlang/github-workflows/.github/workflows/soundness.yml@main
     with:
       license_header_check_project_name: "Swift HTTP API Proposal"
-      api_breakage_check_container_image: "swiftlang/swift:nightly-main-noble"
-      format_check_container_image: "swiftlang/swift:nightly-main-noble"  # Needed due to https://github.com/swiftlang/swift-format/issues/1081
+      api_breakage_check_container_image: "swiftlang/swift:nightly-6.4.x-noble"
+      format_check_container_image: "swiftlang/swift:nightly-6.4.x-noble"
 
   unit-tests:
     name: Unit tests
     uses: apple/swift-nio/.github/workflows/unit_tests.yml@main
     with:
-      linux_nightly_next_enabled: false
+      linux_nightly_next_enabled: true
       linux_nightly_main_arguments_override: "--explicit-target-dependency-import-check error -Xswiftc -require-explicit-sendable"
       windows_nightly_next_enabled: false
       windows_nightly_main_enabled: false
@@ -46,7 +46,7 @@ jobs:
       linux_5_10_enabled: false
       linux_6_0_enabled: false
       linux_6_1_enabled: false
-      linux_nightly_next_enabled: false
+      linux_nightly_next_enabled: true
       windows_6_0_enabled: false
       windows_6_1_enabled: false
       windows_nightly_next_enabled: false
diff --git a/Package.swift b/Package.swift
index 03c9670..e6b0b32 100644
--- a/Package.swift
+++ b/Package.swift
@@ -4,11 +4,8 @@ import PackageDescription
 
 let extraSettings: [SwiftSetting] = [
     .strictMemorySafety(),
-    .enableExperimentalFeature("SuppressedAssociatedTypesWithDefaults"),
-    .enableExperimentalFeature("LifetimeDependence"),
     .enableExperimentalFeature("Lifetimes"),
     .enableExperimentalFeature("Extern"),
-    .enableUpcomingFeature("LifetimeDependence"),
     .enableUpcomingFeature("NonisolatedNonsendingByDefault"),
     .enableUpcomingFeature("InferIsolatedConformances"),
     .enableUpcomingFeature("ExistentialAny"),
@@ -39,7 +36,7 @@ let package = Package(
         .default(enabledTraits: ["Configuration"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/apple/swift-collections.git", from: "1.5.1"),
+        .package(url: "https://github.com/apple/swift-collections.git", from: "1.6.0"),
         .package(
             url: "https://github.com/apple/swift-async-algorithms.git",
             revision: "8ee3d2be1961950f94b6fa758477e3a0c5486aa9",
@@ -47,7 +44,7 @@ let package = Package(
         ),
         .package(url: "https://github.com/apple/swift-http-types.git", from: "1.6.0"),
         .package(url: "https://github.com/apple/swift-certificates.git", from: "1.19.1"),
-        .package(url: "https://github.com/apple/swift-log.git", from: "1.13.1"),
+        .package(url: "https://github.com/apple/swift-log.git", from: "1.13.2"),
         .package(url: "https://github.com/apple/swift-nio.git", from: "2.100.0"),
         .package(url: "https://github.com/apple/swift-nio-ssl.git", from: "2.37.0"),
         .package(url: "https://github.com/apple/swift-nio-extras.git", from: "1.34.1"),