diff --git a/.classpath b/.classpath
index f945035d7..ad8b6a14e 100644
--- a/.classpath
+++ b/.classpath
@@ -67,26 +67,26 @@
 	<classpathentry kind="lib" path="lib/httpclient-4.5.jar"/>
 	<classpathentry kind="lib" path="lib/httpmime-4.5.jar"/>
 	<classpathentry kind="lib" path="lib/noggit-0.6.jar"/>
-	<classpathentry kind="lib" path="lib/solr-core-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/solr-solrj-5.2.0.jar"/>
+	<classpathentry kind="lib" path="lib/solr-core-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/solr-solrj-5.2.1.jar"/>
 	<classpathentry kind="lib" path="lib/stax2-api-3.1.4.jar"/>
 	<classpathentry kind="lib" path="lib/woodstox-core-asl-4.4.1.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-analyzers-common-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-analyzers-phonetic-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-classification-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-codecs-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-core-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-facet-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-grouping-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-highlighter-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-join-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-memory-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-misc-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-queries-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-queryparser-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-spatial-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-suggest-5.2.0.jar"/>
-	<classpathentry kind="lib" path="lib/lucene-backward-codecs-5.2.0.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-analyzers-common-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-analyzers-phonetic-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-classification-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-codecs-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-core-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-facet-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-grouping-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-highlighter-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-join-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-memory-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-misc-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-queries-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-queryparser-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-spatial-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-suggest-5.2.1.jar"/>
+	<classpathentry kind="lib" path="lib/lucene-backward-codecs-5.2.1.jar"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.junit.JUNIT_CONTAINER/4"/>
 	<classpathentry kind="lib" path="lib/icu4j-55_1.jar"/>
 	<classpathentry kind="lib" path="lib/htmllexer.jar"/>
diff --git a/build.xml b/build.xml
index fb2815037..2e855d308 100644
--- a/build.xml
+++ b/build.xml
@@ -205,22 +205,22 @@
     	<pathelement location="${lib}/json-simple-1.1.1.jar" />
     	<pathelement location="${lib}/jsoup-1.8.2.jar" />
     	<pathelement location="${lib}/log4j-over-slf4j-1.7.12.jar" />
-    	<pathelement location="${lib}/lucene-analyzers-common-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-analyzers-phonetic-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-backward-codecs-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-classification-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-codecs-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-core-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-facet-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-grouping-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-highlighter-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-join-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-memory-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-misc-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-queries-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-queryparser-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-spatial-5.2.0.jar" />
-    	<pathelement location="${lib}/lucene-suggest-5.2.0.jar" />
+    	<pathelement location="${lib}/lucene-analyzers-common-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-analyzers-phonetic-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-backward-codecs-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-classification-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-codecs-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-core-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-facet-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-grouping-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-highlighter-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-join-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-memory-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-misc-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-queries-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-queryparser-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-spatial-5.2.1.jar" />
+    	<pathelement location="${lib}/lucene-suggest-5.2.1.jar" />
     	<pathelement location="${lib}/metadata-extractor-2.8.1.jar" />
     	<pathelement location="${lib}/noggit-0.5.jar" />
     	<pathelement location="${lib}/org.restlet.jar" />
@@ -229,8 +229,8 @@
     	<pathelement location="${lib}/poi-scratchpad-3.12-20150511.jar" />
         <pathelement location="${lib}/slf4j-api-1.7.12.jar" />
         <pathelement location="${lib}/slf4j-jdk14-1.7.12.jar" />
-        <pathelement location="${lib}/solr-core-5.2.0.jar" />
-        <pathelement location="${lib}/solr-solrj-5.2.0.jar" />
+        <pathelement location="${lib}/solr-core-5.2.1.jar" />
+        <pathelement location="${lib}/solr-solrj-5.2.1.jar" />
     	<pathelement location="${lib}/spatial4j-0.4.1.jar" />
     	<pathelement location="${lib}/webcat-0.1-swf.jar" />
     	<pathelement location="${lib}/weupnp-0.1.3.jar" />
diff --git a/lib/lucene-analyzers-common-5.2.0.jar b/lib/lucene-analyzers-common-5.2.1.jar
similarity index 94%
rename from lib/lucene-analyzers-common-5.2.0.jar
rename to lib/lucene-analyzers-common-5.2.1.jar
index 9cc923559..aaa26a135 100644
Binary files a/lib/lucene-analyzers-common-5.2.0.jar and b/lib/lucene-analyzers-common-5.2.1.jar differ
diff --git a/lib/lucene-analyzers-phonetic-5.2.0.jar b/lib/lucene-analyzers-phonetic-5.2.1.jar
similarity index 89%
rename from lib/lucene-analyzers-phonetic-5.2.0.jar
rename to lib/lucene-analyzers-phonetic-5.2.1.jar
index 3287b9d37..838b8daf2 100644
Binary files a/lib/lucene-analyzers-phonetic-5.2.0.jar and b/lib/lucene-analyzers-phonetic-5.2.1.jar differ
diff --git a/lib/lucene-backward-codecs-5.2.0.jar b/lib/lucene-backward-codecs-5.2.1.jar
similarity index 92%
rename from lib/lucene-backward-codecs-5.2.0.jar
rename to lib/lucene-backward-codecs-5.2.1.jar
index 3176e662e..bbdfff8b2 100644
Binary files a/lib/lucene-backward-codecs-5.2.0.jar and b/lib/lucene-backward-codecs-5.2.1.jar differ
diff --git a/lib/lucene-classification-5.2.0.jar b/lib/lucene-classification-5.2.1.jar
similarity index 92%
rename from lib/lucene-classification-5.2.0.jar
rename to lib/lucene-classification-5.2.1.jar
index 290be7a74..9901b5a97 100644
Binary files a/lib/lucene-classification-5.2.0.jar and b/lib/lucene-classification-5.2.1.jar differ
diff --git a/lib/lucene-codecs-5.2.0.jar b/lib/lucene-codecs-5.2.1.jar
similarity index 93%
rename from lib/lucene-codecs-5.2.0.jar
rename to lib/lucene-codecs-5.2.1.jar
index e5faf7922..be7e95778 100644
Binary files a/lib/lucene-codecs-5.2.0.jar and b/lib/lucene-codecs-5.2.1.jar differ
diff --git a/lib/lucene-core-5.2.0.jar b/lib/lucene-core-5.2.1.jar
similarity index 88%
rename from lib/lucene-core-5.2.0.jar
rename to lib/lucene-core-5.2.1.jar
index 6b192d886..18b887f79 100644
Binary files a/lib/lucene-core-5.2.0.jar and b/lib/lucene-core-5.2.1.jar differ
diff --git a/lib/lucene-facet-5.2.0.jar b/lib/lucene-facet-5.2.1.jar
similarity index 91%
rename from lib/lucene-facet-5.2.0.jar
rename to lib/lucene-facet-5.2.1.jar
index 587afa2b1..fb96a545d 100644
Binary files a/lib/lucene-facet-5.2.0.jar and b/lib/lucene-facet-5.2.1.jar differ
diff --git a/lib/lucene-grouping-5.2.0.jar b/lib/lucene-grouping-5.2.1.jar
similarity index 90%
rename from lib/lucene-grouping-5.2.0.jar
rename to lib/lucene-grouping-5.2.1.jar
index 977019d0a..6d7b46dd1 100644
Binary files a/lib/lucene-grouping-5.2.0.jar and b/lib/lucene-grouping-5.2.1.jar differ
diff --git a/lib/lucene-highlighter-5.2.0.jar b/lib/lucene-highlighter-5.2.1.jar
similarity index 91%
rename from lib/lucene-highlighter-5.2.0.jar
rename to lib/lucene-highlighter-5.2.1.jar
index d20d5d6c9..e81ecbd7c 100644
Binary files a/lib/lucene-highlighter-5.2.0.jar and b/lib/lucene-highlighter-5.2.1.jar differ
diff --git a/lib/lucene-join-5.2.0.jar b/lib/lucene-join-5.2.1.jar
similarity index 90%
rename from lib/lucene-join-5.2.0.jar
rename to lib/lucene-join-5.2.1.jar
index 08fec00ac..570275134 100644
Binary files a/lib/lucene-join-5.2.0.jar and b/lib/lucene-join-5.2.1.jar differ
diff --git a/lib/lucene-memory-5.2.0.jar b/lib/lucene-memory-5.2.1.jar
similarity index 91%
rename from lib/lucene-memory-5.2.0.jar
rename to lib/lucene-memory-5.2.1.jar
index 6bc7dc8a9..7c4eb8ec2 100644
Binary files a/lib/lucene-memory-5.2.0.jar and b/lib/lucene-memory-5.2.1.jar differ
diff --git a/lib/lucene-misc-5.2.0.jar b/lib/lucene-misc-5.2.1.jar
similarity index 91%
rename from lib/lucene-misc-5.2.0.jar
rename to lib/lucene-misc-5.2.1.jar
index 69dc8474f..ce6eeba16 100644
Binary files a/lib/lucene-misc-5.2.0.jar and b/lib/lucene-misc-5.2.1.jar differ
diff --git a/lib/lucene-queries-5.2.0.jar b/lib/lucene-queries-5.2.1.jar
similarity index 87%
rename from lib/lucene-queries-5.2.0.jar
rename to lib/lucene-queries-5.2.1.jar
index 145acb91e..01742fa90 100644
Binary files a/lib/lucene-queries-5.2.0.jar and b/lib/lucene-queries-5.2.1.jar differ
diff --git a/lib/lucene-queryparser-5.2.0.jar b/lib/lucene-queryparser-5.2.1.jar
similarity index 90%
rename from lib/lucene-queryparser-5.2.0.jar
rename to lib/lucene-queryparser-5.2.1.jar
index bc8926528..ee7599359 100644
Binary files a/lib/lucene-queryparser-5.2.0.jar and b/lib/lucene-queryparser-5.2.1.jar differ
diff --git a/lib/lucene-spatial-5.2.0.jar b/lib/lucene-spatial-5.2.1.jar
similarity index 91%
rename from lib/lucene-spatial-5.2.0.jar
rename to lib/lucene-spatial-5.2.1.jar
index d8478e77c..51b36233f 100644
Binary files a/lib/lucene-spatial-5.2.0.jar and b/lib/lucene-spatial-5.2.1.jar differ
diff --git a/lib/lucene-suggest-5.2.0.jar b/lib/lucene-suggest-5.2.1.jar
similarity index 92%
rename from lib/lucene-suggest-5.2.0.jar
rename to lib/lucene-suggest-5.2.1.jar
index c78858bdc..e30c5d41d 100644
Binary files a/lib/lucene-suggest-5.2.0.jar and b/lib/lucene-suggest-5.2.1.jar differ
diff --git a/lib/solr-core-5.2.0.jar b/lib/solr-core-5.2.1.jar
similarity index 91%
rename from lib/solr-core-5.2.0.jar
rename to lib/solr-core-5.2.1.jar
index 3a01c46b9..cd2844a21 100644
Binary files a/lib/solr-core-5.2.0.jar and b/lib/solr-core-5.2.1.jar differ
diff --git a/lib/solr-solrj-5.2.0.jar b/lib/solr-solrj-5.2.1.jar
similarity index 91%
rename from lib/solr-solrj-5.2.0.jar
rename to lib/solr-solrj-5.2.1.jar
index e2a4e7855..1e33bd0e8 100644
Binary files a/lib/solr-solrj-5.2.0.jar and b/lib/solr-solrj-5.2.1.jar differ
diff --git a/nbproject/project.xml b/nbproject/project.xml
index 0111dcb53..4d204ae8c 100644
--- a/nbproject/project.xml
+++ b/nbproject/project.xml
@@ -83,7 +83,7 @@
             <compilation-unit>
                 <package-root>source</package-root>
                 <package-root>htroot</package-root>
-                <classpath mode="compile">lib/J7Zip-modified.jar;lib/apache-mime4j-0.6.jar;lib/bcmail-jdk15-1.46.jar;lib/bcprov-jdk15-1.46.jar;lib/chardet.jar;lib/commons-codec-1.10.jar;lib/commons-compress-1.9.jar;lib/commons-fileupload-1.3.1.jar;lib/commons-io-2.4.jar;lib/commons-jxpath-1.3.jar;lib/commons-lang-2.6.jar;lib/commons-logging-1.2.jar;lib/fontbox-1.8.9.jar;lib/geronimo-stax-api_1.0_spec-1.0.1.jar;lib/guava-18.0.jar;lib/htmllexer.jar;lib/httpclient-4.5.jar;lib/httpcore-4.4.1.jar;lib/httpmime-4.5.jar;lib/icu4j-55_1.jar;lib/jakarta-oro-2.0.8.jar;lib/jaudiotagger-2.0.4-20111207.115108-15.jar;lib/javax.servlet-api-3.1.0.jar;lib/jcifs-1.3.17.jar;lib/jcl-over-slf4j-1.7.12.jar;lib/jempbox-1.8.9.jar;lib/jetty-client-9.2.11.v20150529.jar;lib/jetty-continuation-9.2.11.v20150529.jar;lib/jetty-deploy-9.2.11.v20150529.jar;lib/jetty-http-9.2.11.v20150529.jar;lib/jetty-io-9.2.11.v20150529.jar;lib/jetty-jmx-9.2.11.v20150529.jar;lib/jetty-proxy-9.2.11.v20150529.jar;lib/jetty-security-9.2.11.v20150529.jar;lib/jetty-server-9.2.11.v20150529.jar;lib/jetty-servlet-9.2.11.v20150529.jar;lib/jetty-servlets-9.2.11.v20150529.jar;lib/jetty-util-9.2.11.v20150529.jar;lib/jetty-webapp-9.2.11.v20150529.jar;lib/jetty-xml-9.2.11.v20150529.jar;lib/jsch-0.1.53.jar;lib/json-simple-1.1.1.jar;lib/jsoup-1.8.2.jar;lib/log4j-over-slf4j-1.7.12.jar;lib/lucene-analyzers-common-5.2.0.jar;lib/lucene-analyzers-phonetic-5.2.0.jar;lib/lucene-backward-codecs-5.2.0.jar;lib/lucene-classification-5.2.0.jar;lib/lucene-codecs-5.2.0.jar;lib/lucene-core-5.2.0.jar;lib/lucene-facet-5.2.0.jar;lib/lucene-grouping-5.2.0.jar;lib/lucene-highlighter-5.2.0.jar;lib/lucene-join-5.2.0.jar;lib/lucene-memory-5.2.0.jar;lib/lucene-misc-5.2.0.jar;lib/lucene-queries-5.2.0.jar;lib/lucene-queryparser-5.2.0.jar;lib/lucene-spatial-5.2.0.jar;lib/lucene-suggest-5.2.0.jar;lib/metadata-extractor-2.8.1.jar;lib/noggit-0.6.jar;lib/org.restlet.jar;lib/pdfbox-1.8.9.jar;lib/poi-3.12-20150511.jar;lib/poi-scratchpad-3.12-20150511.jar;lib/slf4j-api-1.7.12.jar;lib/slf4j-jdk14-1.7.12.jar;lib/solr-core-5.2.0.jar;lib/solr-solrj-5.2.0.jar;lib/spatial4j-0.4.1.jar;lib/stax2-api-3.1.4.jar;lib/webcat-0.1-swf.jar;lib/weupnp-0.1.3.jar;lib/woodstox-core-asl-4.4.1.jar;lib/wstx-asl-3.2.9.jar;lib/xercesImpl.jar;lib/xml-apis.jar;lib/xmpcore-5.1.2.jar;lib/zookeeper-3.4.6.jar</classpath>
+                <classpath mode="compile">lib/J7Zip-modified.jar;lib/apache-mime4j-0.6.jar;lib/bcmail-jdk15-1.46.jar;lib/bcprov-jdk15-1.46.jar;lib/chardet.jar;lib/commons-codec-1.10.jar;lib/commons-compress-1.9.jar;lib/commons-fileupload-1.3.1.jar;lib/commons-io-2.4.jar;lib/commons-jxpath-1.3.jar;lib/commons-lang-2.6.jar;lib/commons-logging-1.2.jar;lib/fontbox-1.8.9.jar;lib/geronimo-stax-api_1.0_spec-1.0.1.jar;lib/guava-18.0.jar;lib/htmllexer.jar;lib/httpclient-4.5.jar;lib/httpcore-4.4.1.jar;lib/httpmime-4.5.jar;lib/icu4j-55_1.jar;lib/jakarta-oro-2.0.8.jar;lib/jaudiotagger-2.0.4-20111207.115108-15.jar;lib/javax.servlet-api-3.1.0.jar;lib/jcifs-1.3.17.jar;lib/jcl-over-slf4j-1.7.12.jar;lib/jempbox-1.8.9.jar;lib/jetty-client-9.2.11.v20150529.jar;lib/jetty-continuation-9.2.11.v20150529.jar;lib/jetty-deploy-9.2.11.v20150529.jar;lib/jetty-http-9.2.11.v20150529.jar;lib/jetty-io-9.2.11.v20150529.jar;lib/jetty-jmx-9.2.11.v20150529.jar;lib/jetty-proxy-9.2.11.v20150529.jar;lib/jetty-security-9.2.11.v20150529.jar;lib/jetty-server-9.2.11.v20150529.jar;lib/jetty-servlet-9.2.11.v20150529.jar;lib/jetty-servlets-9.2.11.v20150529.jar;lib/jetty-util-9.2.11.v20150529.jar;lib/jetty-webapp-9.2.11.v20150529.jar;lib/jetty-xml-9.2.11.v20150529.jar;lib/jsch-0.1.53.jar;lib/json-simple-1.1.1.jar;lib/jsoup-1.8.2.jar;lib/log4j-over-slf4j-1.7.12.jar;lib/lucene-analyzers-common-5.2.1.jar;lib/lucene-analyzers-phonetic-5.2.1.jar;lib/lucene-backward-codecs-5.2.1.jar;lib/lucene-classification-5.2.1.jar;lib/lucene-codecs-5.2.1.jar;lib/lucene-core-5.2.1.jar;lib/lucene-facet-5.2.1.jar;lib/lucene-grouping-5.2.1.jar;lib/lucene-highlighter-5.2.1.jar;lib/lucene-join-5.2.1.jar;lib/lucene-memory-5.2.1.jar;lib/lucene-misc-5.2.1.jar;lib/lucene-queries-5.2.1.jar;lib/lucene-queryparser-5.2.1.jar;lib/lucene-spatial-5.2.1.jar;lib/lucene-suggest-5.2.1.jar;lib/metadata-extractor-2.8.1.jar;lib/noggit-0.6.jar;lib/org.restlet.jar;lib/pdfbox-1.8.9.jar;lib/poi-3.12-20150511.jar;lib/poi-scratchpad-3.12-20150511.jar;lib/slf4j-api-1.7.12.jar;lib/slf4j-jdk14-1.7.12.jar;lib/solr-core-5.2.1.jar;lib/solr-solrj-5.2.1.jar;lib/spatial4j-0.4.1.jar;lib/stax2-api-3.1.4.jar;lib/webcat-0.1-swf.jar;lib/weupnp-0.1.3.jar;lib/woodstox-core-asl-4.4.1.jar;lib/wstx-asl-3.2.9.jar;lib/xercesImpl.jar;lib/xml-apis.jar;lib/xmpcore-5.1.2.jar;lib/zookeeper-3.4.6.jar</classpath>
                 <built-to>lib/yacycore.jar</built-to>
                 <source-level>1.7</source-level>
             </compilation-unit>
diff --git a/pom.xml b/pom.xml
index 6ff698b1b..617a3ef3c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -421,7 +421,7 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>jcl-over-slf4j</artifactId>
-            <version>1.7.9</version>
+            <version>1.7.12</version>
         </dependency>
         <dependency>
             <groupId>org.apache.pdfbox</groupId>
@@ -451,7 +451,7 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>log4j-over-slf4j</artifactId>
-            <version>1.7.9</version>
+            <version>1.7.12</version>
         </dependency>
         <dependency>
             <groupId>org.apache.lucene</groupId>
@@ -536,12 +536,12 @@
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-api</artifactId>
-            <version>1.7.9</version>
+            <version>1.7.12</version>
         </dependency>
         <dependency>
             <groupId>org.slf4j</groupId>
             <artifactId>slf4j-jdk14</artifactId>
-            <version>1.7.9</version>
+            <version>1.7.12</version>
         </dependency>
         <dependency>
             <groupId>org.apache.solr</groupId>