Bump version to v3.1.3

Change-Id: Iace5f24d2a24f2eee45279ad1b33b59b6fa994e1
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72b7f79..83cf74f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,11 +1,11 @@
 # Changelog
 
-## [v3.1.3] - unreleased
+## [v3.1.3] - 2025-01-15
 
 ### Fixed
 
 - Fixed `-L` (log directory) option being ignored when using internal taggers (`-T opennlp`, `-T marmot`, etc.)
-- Renamed `textExternalLinks` metadata field to `textExternalLink` (singular) (https://github.com/KorAP/korapxmltool/issues/26)
+- Renamed `textExternalLinks` metadata field to `textExternalLink` (singular) ([#26](https://github.com/KorAP/korapxmltool/issues/26))
 
 ## [v3.1.2] - 2025-12-18
 
diff --git a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
index 5a23e7e..5f593f8 100644
--- a/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
+++ b/app/src/main/kotlin/de/ids_mannheim/korapxmltools/KorapXmlTool.kt
@@ -61,7 +61,7 @@
 @Command(
     name = "korapxmltool",
     mixinStandardHelpOptions = true,
-    version = ["korapxmltool v3.1.2"],
+    version = ["korapxmltool v3.1.3"],
     usageHelpAutoWidth = false,
     usageHelpWidth = 200,
     description = ["Converts between KorAP-XML ZIP format and formats like CoNLL-U, Krill, word2vec, NOW\n"+
diff --git a/build.gradle b/build.gradle
index 2b3bb08..ddef8b4 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,4 +5,4 @@
 }
 
 // Zentrale Projektversion für korapxmltool
-version = '3.1.2'
+version = '3.1.3'