diff --git a/README.md b/README.md
index decccbe..6fecd85 100644
--- a/README.md
+++ b/README.md
@@ -11,6 +11,8 @@ fmmr solutions for Advent of code.
 [Implementations](https://github.com/fmmr/advent/tree/master/src/main/kotlin/no/rodland/advent_2023),
 [Tests](https://github.com/fmmr/advent/tree/master/src/test/kotlin/no/rodland/advent_2023)
 
+![ascii art](gifs/2023.gif?raw=true "ascii art")
+
 ## 2022
 
 [AOC](https://adventofcode.com/2022),
diff --git a/gifs/2023.gif b/gifs/2023.gif
new file mode 100644
index 0000000..1630dea
Binary files /dev/null and b/gifs/2023.gif differ
diff --git a/gifs/stars.png b/gifs/stars.png
index 6e0f3ee..5eeafe4 100644
Binary files a/gifs/stars.png and b/gifs/stars.png differ
diff --git a/pom.xml b/pom.xml
index db5563c..3658fb2 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,19 +13,20 @@
         <maven.compiler.source>21</maven.compiler.source>
         <maven.compiler.target>21</maven.compiler.target>
 
-        <kotlin.version>1.9.21</kotlin.version>
+        <kotlin.version>1.9.22</kotlin.version>
         <kotlin.jvmTarget>21</kotlin.jvmTarget>
         <kotlin.compiler.incremental>true</kotlin.compiler.incremental>
 
         <assertj.version>3.24.2</assertj.version>
-        <version.json-simple>1.1.1</version.json-simple>
         <guava.version>32.1.3-jre</guava.version>
         <jacoco-maven-plugin.version>0.8.11</jacoco-maven-plugin.version>
+        <jgrapht.version>1.5.2</jgrapht.version>
         <junit.version>5.10.1</junit.version>
         <klaxon.version>5.6</klaxon.version>
         <kotlinx-coroutines.version>1.7.3</kotlinx-coroutines.version>
         <maven-compiler-plugin.version>3.11.0</maven-compiler-plugin.version>
         <surefire.version>3.2.2</surefire.version>
+        <version.json-simple>1.1.1</version.json-simple>
     </properties>
     <dependencyManagement>
         <!-- debugging why source isn't visible for kotlin stdlib -->
@@ -69,7 +70,7 @@
         <dependency>
             <groupId>org.jgrapht</groupId>
             <artifactId>jgrapht-core</artifactId>
-            <version>1.5.2</version>
+            <version>${jgrapht.version}</version>
         </dependency>
 
         <dependency>