diff --git a/LEGALNOTICE.md b/LEGALNOTICE.md
index 31544221b0a..6f6c9d9518b 100644
--- a/LEGALNOTICE.md
+++ b/LEGALNOTICE.md
@@ -54,10 +54,10 @@ and subject to their respective licenses.
 | jfreechart-1.5.6.jar                | LGPL                      |
 | jgrapht-core-0.9.2.jar              | LGPL 2.1                  |
 | json-lib-2.4-jdk15.jar              | MIT + "Good, Not Evil"    |
-| log4j-1.2-api-2.26.0.jar            | Apache 2.0                |
-| log4j-api-2.26.0.jar                | Apache 2.0                |
-| log4j-core-2.26.0.jar               | Apache 2.0                |
-| log4j-jul-2.26.0.jar                | Apache 2.0                |
+| log4j-1.2-api-2.26.1.jar            | Apache 2.0                |
+| log4j-api-2.26.1.jar                | Apache 2.0                |
+| log4j-core-2.26.1.jar               | Apache 2.0                |
+| log4j-jul-2.26.1.jar                | Apache 2.0                |
 | rsyntaxtextarea-3.6.3.jar           | BSD-3 clause              |
 | swingx-all-1.6.5-1.jar              | LGPL 2.1                  |
 | xom-1.4.6.jar                       | LGPL                      |
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 902b28b6ba4..0bb29406ce3 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,11 +1,11 @@
 [versions]
 errorprone = "2.42.0"
 flatlaf = "3.7.1"
-log4j = "2.26.0"
+log4j = "2.26.1"
 
 [libraries]
 bndAnnotation = "biz.aQute.bnd:biz.aQute.bnd.annotation:7.3.0"
-bytebuddy = "net.bytebuddy:byte-buddy:1.18.10"
+bytebuddy = "net.bytebuddy:byte-buddy:1.18.11"
 commons-beanutils = "commons-beanutils:commons-beanutils:1.11.0"
 commons-codec = "commons-codec:commons-codec:1.22.0"
 commons-collections = "commons-collections:commons-collections:3.2.2"
diff --git a/zap/src/main/java/org/zaproxy/zap/extension/script/ExtensionScript.java b/zap/src/main/java/org/zaproxy/zap/extension/script/ExtensionScript.java
index 51ecf7f98ea..5b006917429 100644
--- a/zap/src/main/java/org/zaproxy/zap/extension/script/ExtensionScript.java
+++ b/zap/src/main/java/org/zaproxy/zap/extension/script/ExtensionScript.java
@@ -35,10 +35,10 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Enumeration;
-import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
+import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.CopyOnWriteArrayList;
 import javax.script.Invocable;
 import javax.script.ScriptContext;
@@ -126,7 +126,7 @@ public class ExtensionScript extends ExtensionAdaptor implements CommandLineList
 
     private ScriptTreeModel treeModel = null;
     private List<ScriptEngineWrapper> engineWrappers = new ArrayList<>();
-    private Map<String, ScriptType> typeMap = new HashMap<>();
+    private Map<String, ScriptType> typeMap = new ConcurrentHashMap<>();
     private ProxyListenerScript proxyListener = null;
     private HttpSenderScriptListener httpSenderScriptListener;
 
diff --git a/zap/src/test/java/org/zaproxy/zap/extension/script/ExtensionScriptUnitTest.java b/zap/src/test/java/org/zaproxy/zap/extension/script/ExtensionScriptUnitTest.java
index c9794656b65..f8e8f25fb53 100644
--- a/zap/src/test/java/org/zaproxy/zap/extension/script/ExtensionScriptUnitTest.java
+++ b/zap/src/test/java/org/zaproxy/zap/extension/script/ExtensionScriptUnitTest.java
@@ -23,6 +23,7 @@
 import static org.hamcrest.Matchers.is;
 import static org.hamcrest.Matchers.not;
 import static org.hamcrest.Matchers.nullValue;
+import static org.junit.jupiter.api.Assertions.assertDoesNotThrow;
 import static org.junit.jupiter.api.Assertions.assertThrows;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.spy;
@@ -30,6 +31,7 @@
 import static org.mockito.Mockito.when;
 
 import java.security.InvalidParameterException;
+import java.util.Iterator;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
@@ -50,6 +52,18 @@ void cleanUp() {
         Constant.messages = null;
     }
 
+    @Test
+    void shouldReturnThreadSafeScriptTypesCollection() {
+        // Given
+        ExtensionScript extensionScript = new ExtensionScript();
+        extensionScript.hook(mock());
+        Iterator<ScriptType> it = extensionScript.getScriptTypes().iterator();
+        extensionScript.registerScriptType(new ScriptType("type", "i18n.type", null, true));
+
+        // When / Then
+        assertDoesNotThrow(it::next);
+    }
+
     @Test
     void shouldCreateScriptsCache() {
         // Given