diff --git a/CHANGES.md b/CHANGES.md
index 38af879390..dfc37968fc 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -16,6 +16,7 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
   * Adds support for worktrees (fixes [#1765](https://github.com/diffplug/spotless/issues/1765))
 * Bump default `google-java-format` version to latest `1.24.0` -> `1.28.0`. ([#2345](https://github.com/diffplug/spotless/pull/2345))
 * Bump default `ktlint` version to latest `1.5.0` -> `1.7.1`. ([#2555](https://github.com/diffplug/spotless/pull/2555))
+* Bump default `jackson` version to latest `2.19.2` -> `2.20.0`. ([#2606](https://github.com/diffplug/spotless/pull/2606))
 
 ## [3.3.1] - 2025-07-21
 ### Fixed
diff --git a/lib/build.gradle b/lib/build.gradle
index 15582710d6..745a8b410b 100644
--- a/lib/build.gradle
+++ b/lib/build.gradle
@@ -100,7 +100,7 @@ dependencies {
 	// gson
 	gsonCompileOnly 'com.google.code.gson:gson:2.13.1'
 	// jackson
-	String VER_JACKSON='2.19.2'
+	String VER_JACKSON='2.20.0'
 	jacksonCompileOnly "com.fasterxml.jackson.core:jackson-databind:$VER_JACKSON"
 	jacksonCompileOnly "com.fasterxml.jackson.dataformat:jackson-dataformat-yaml:$VER_JACKSON"
 	// ktfmt
diff --git a/lib/src/main/java/com/diffplug/spotless/json/JacksonJsonStep.java b/lib/src/main/java/com/diffplug/spotless/json/JacksonJsonStep.java
index fe4bf36b30..bd42e8d35e 100644
--- a/lib/src/main/java/com/diffplug/spotless/json/JacksonJsonStep.java
+++ b/lib/src/main/java/com/diffplug/spotless/json/JacksonJsonStep.java
@@ -32,7 +32,7 @@
 public class JacksonJsonStep implements Serializable {
 	private static final long serialVersionUID = 1L;
 	private static final String MAVEN_COORDINATE = "com.fasterxml.jackson.core:jackson-databind:";
-	private static final String DEFAULT_VERSION = "2.19.2";
+	private static final String DEFAULT_VERSION = "2.20.0";
 	public static final String NAME = "jacksonJson";
 
 	private final JarState.Promised jarState;
diff --git a/plugin-gradle/CHANGES.md b/plugin-gradle/CHANGES.md
index 9e25b1d3d3..98a465f59d 100644
--- a/plugin-gradle/CHANGES.md
+++ b/plugin-gradle/CHANGES.md
@@ -9,6 +9,7 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
   * Adds support for worktrees (fixes [#1765](https://github.com/diffplug/spotless/issues/1765))
 * Bump default `google-java-format` version to latest `1.24.0` -> `1.28.0`. ([#2345](https://github.com/diffplug/spotless/pull/2345))
 * Bump default `ktlint` version to latest `1.5.0` -> `1.7.1`. ([#2555](https://github.com/diffplug/spotless/pull/2555))
+* Bump default `jackson` version to latest `2.19.2` -> `2.20.0`. ([#2606](https://github.com/diffplug/spotless/pull/2606))
 ### Fixed
 * Respect system gitconfig when performing git operations ([#2404](https://github.com/diffplug/spotless/issues/2404))
 
diff --git a/plugin-maven/CHANGES.md b/plugin-maven/CHANGES.md
index f6f6bd14fa..c58e31e0c2 100644
--- a/plugin-maven/CHANGES.md
+++ b/plugin-maven/CHANGES.md
@@ -9,6 +9,7 @@ We adhere to the [keepachangelog](https://keepachangelog.com/en/1.0.0/) format (
   * Adds support for worktrees (fixes [#1765](https://github.com/diffplug/spotless/issues/1765))
 * Bump default `google-java-format` version to latest `1.24.0` -> `1.28.0`. ([#2345](https://github.com/diffplug/spotless/pull/2345))
 * Bump default `ktlint` version to latest `1.5.0` -> `1.7.1`. ([#2555](https://github.com/diffplug/spotless/pull/2555))
+* Bump default `jackson` version to latest `2.19.2` -> `2.20.0`. ([#2606](https://github.com/diffplug/spotless/pull/2606))
 
 ## [2.46.1] - 2025-07-21
 ### Fixed