diff --git a/README.md b/README.md
index 18cc9ee..a837048 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ in [`docs/`](docs) was produced by [`run-all.sh`](run-all.sh) on the versions be
 nothing is transcribed by hand.
 
 ```
-Jackson            3.2.1        (tools.jackson.core:jackson-databind)
+Jackson            3.2.3        (tools.jackson.core:jackson-databind)
 jackson-annotations 2.22        (com.fasterxml.jackson.core — deliberately unchanged)
 JDK                Temurin 21.0.5
 Maven              3.9.9
@@ -64,7 +64,7 @@ Raw stdout for all 37 programs is in [`docs/output/`](docs/output), regenerated
 
 ## Corrections to the posts
 
-Writing this code against a real Jackson 3.2.1 build surfaced places where the blog
+Writing this code against a real Jackson 3.2.3 build surfaced places where the blog
 snippets do not compile or do not behave as printed. Each is demonstrated by a program,
 so you can verify rather than take my word for it.
 
diff --git a/pom.xml b/pom.xml
index 2cd0624..c4b4402 100644
--- a/pom.xml
+++ b/pom.xml
@@ -16,7 +16,7 @@
     <!-- Jackson 3 requires Java 17+. Verified on Temurin 21.0.5. -->
     <maven.compiler.release>21</maven.compiler.release>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-    <jackson.version>3.2.1</jackson.version>
+    <jackson.version>3.2.3</jackson.version>
   </properties>
 
   <dependencyManagement>
@@ -37,7 +37,7 @@
     <!-- Jackson 3 lives at tools.jackson.core, NOT com.fasterxml.jackson.core.
          jackson-databind pulls in jackson-core and jackson-annotations transitively.
          jackson-annotations deliberately stays on the com.fasterxml.jackson.core
-         group ID (2.22 as of Jackson 3.2.1) so it can be shared with Jackson 2. -->
+         group ID (2.22 as of Jackson 3.2.3) so it can be shared with Jackson 2. -->
     <dependency>
       <groupId>tools.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>