diff --git a/.circleci/config.yml b/.circleci/config.yml
index 0f4f323..d5f14a0 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,6 +9,7 @@ workflows:
             - unreal-engine-ci
           matrix:
             parameters:
+              # TODO: The container image is not supported for 5.4.0.
               unreal-engine-version: [
                 "4.27.0", "5.0.0", "5.1.0", "5.2.0", "5.3.0"
               ]
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index d738874..b67863d 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         unreal_engine_version:
-          ["4.27.0", "5.0.0", "5.1.0", "5.2.0", "5.3.0"]
+          ["4.27.0", "5.0.0", "5.1.0", "5.2.0", "5.3.0", "5.4.0"]
         version:
           ["free", "full"]
     steps:
diff --git a/BlueprintToRSTDoc/BlueprintToRSTDoc.uplugin b/BlueprintToRSTDoc/BlueprintToRSTDoc.uplugin
index 56ace5d..67dfa27 100644
--- a/BlueprintToRSTDoc/BlueprintToRSTDoc.uplugin
+++ b/BlueprintToRSTDoc/BlueprintToRSTDoc.uplugin
@@ -4,7 +4,7 @@
   "VersionName": "1.1",
   "FriendlyName": "Blueprint to reStructuredText Document",
   "Description": "Generate reStructuredText (RST) Format Documents from Blueprints",
-  "EngineVersion": "5.3.0",
+  "EngineVersion": "5.4.0",
   "Category": "Other",
   "CreatedBy": "nutti (Colorful Pico)",
   "CreatedByURL": "https://github.com/nutti/UEPlugin-BlueprintToRSTDoc",
diff --git a/tests/functional_test/FunctionalTest/Source/FunctionalTest.Target.cs b/tests/functional_test/FunctionalTest/Source/FunctionalTest.Target.cs
index d65b610..db5dc33 100644
--- a/tests/functional_test/FunctionalTest/Source/FunctionalTest.Target.cs
+++ b/tests/functional_test/FunctionalTest/Source/FunctionalTest.Target.cs
@@ -15,8 +15,7 @@ public class FunctionalTestTarget : TargetRules
 	public FunctionalTestTarget(TargetInfo Target) : base(Target)
 	{
 		Type = TargetType.Game;
-		DefaultBuildSettings = BuildSettingsVersion.V4;
-		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_3;
+		DefaultBuildSettings = BuildSettingsVersion.Latest;
 		ExtraModuleNames.Add("FunctionalTest");
 	}
 }
diff --git a/tests/functional_test/FunctionalTest/Source/FunctionalTestEditor.Target.cs b/tests/functional_test/FunctionalTest/Source/FunctionalTestEditor.Target.cs
index e5c2631..1b104d1 100644
--- a/tests/functional_test/FunctionalTest/Source/FunctionalTestEditor.Target.cs
+++ b/tests/functional_test/FunctionalTest/Source/FunctionalTestEditor.Target.cs
@@ -15,8 +15,7 @@ public class FunctionalTestEditorTarget : TargetRules
 	public FunctionalTestEditorTarget(TargetInfo Target) : base(Target)
 	{
 		Type = TargetType.Editor;
-		DefaultBuildSettings = BuildSettingsVersion.V4;
-		IncludeOrderVersion = EngineIncludeOrderVersion.Unreal5_3;
+		DefaultBuildSettings = BuildSettingsVersion.Latest;
 		ExtraModuleNames.Add("FunctionalTest");
 	}
 }
diff --git a/tools/remove_code.sh b/tools/remove_code.sh
index 80d51e0..608fc3b 100644
--- a/tools/remove_code.sh
+++ b/tools/remove_code.sh
@@ -6,7 +6,7 @@ set -eEu
 
 SUPPORTED_VERSIONS=(
     "4.26.0" "4.27.0"
-    "5.0.0" "5.1.0" "5.2.0" "5.3.0"
+    "5.0.0" "5.1.0" "5.2.0" "5.3.0" "5.4.0"
 )
 
 function usage() {
diff --git a/tools/replace_engine_version.sh b/tools/replace_engine_version.sh
index b8de17d..0642b30 100644
--- a/tools/replace_engine_version.sh
+++ b/tools/replace_engine_version.sh
@@ -6,7 +6,7 @@ set -eEu
 
 SUPPORTED_VERSIONS=(
     "4.26.0" "4.27.0"
-    "5.0.0" "5.1.0" "5.2.0" "5.3.0"
+    "5.0.0" "5.1.0" "5.2.0" "5.3.0" "5.4.0"
 )
 
 function usage() {
@@ -35,6 +35,6 @@ fi
 
 # shellcheck disable=SC2044
 for file in $(find "${source_dir}" -name "*.uplugin"); do
-    sed -i -e "s/\"EngineVersion\": \"5.3.0\",/\"EngineVersion\": \"${engine_version}\",/g" "${file}"
+    sed -i -e "s/\"EngineVersion\": \"5.4.0\",/\"EngineVersion\": \"${engine_version}\",/g" "${file}"
     echo "Replaced engine version in ${file}"
 done