Upgrade dependency on Jackson following dependabot

Change-Id: Ie84a4492fa8ff7d76cdd4cc19634136483be5926
diff --git a/.gitignore b/.gitignore
index 78b5d7f..c55bdbd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,3 +8,4 @@
 /plugin
 /src/main/resources/*_exportPlugin.conf
 /bin/
+*#
diff --git a/Changes b/Changes
index 1d02891..8269a61 100644
--- a/Changes
+++ b/Changes
@@ -1,5 +1,6 @@
 0.2.7 2021-09-07
     - Upgrade dependency on Junit following dependabot.
+    - Upgrade dependency on Jackson following dependabot.
     - Setup encoding in pom to make build platform
       independent.
 
diff --git a/pom.xml b/pom.xml
index fa60e61..2459334 100644
--- a/pom.xml
+++ b/pom.xml
@@ -26,7 +26,7 @@
     <dependency>
       <groupId>com.fasterxml.jackson.core</groupId>
       <artifactId>jackson-databind</artifactId>
-      <version>2.9.8</version>
+      <version>2.12.5</version>
     </dependency>
 
     <!-- jetty -->
diff --git a/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java b/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java
index 6b6e994..0142ab3 100644
--- a/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java
+++ b/src/test/java/de/ids_mannheim/korap/plkexport/ServiceTest.java
@@ -351,7 +351,7 @@
         String str = responsertf.readEntity(String.class);
 
         assertTrue("Title", str.contains("<title>Export</title>"));
-        assertTrue("Error", str.contains("line: 1, column: 539"));
+        assertTrue("Error", str.contains("line: 1, column: "));
 
         // Check paging with broken second page
         mockClient.reset().when(
@@ -394,7 +394,7 @@
 
         str = responsertf.readEntity(String.class);
         assertTrue("Title", str.contains("<title>Export</title>"));
-        assertTrue("Error", str.contains("line: 1, column: 539"));
+        assertTrue("Error", str.contains("line: 1, column: "));
     }