diff --git a/dhp-pace-core/pom.xml b/dhp-pace-core/pom.xml
index 2b72fc576..fac087ac7 100644
--- a/dhp-pace-core/pom.xml
+++ b/dhp-pace-core/pom.xml
@@ -68,7 +68,6 @@
 			<groupId>commons-io</groupId>
 			<artifactId>commons-io</artifactId>
 		</dependency>
-
 		<dependency>
 			<groupId>org.antlr</groupId>
 			<artifactId>stringtemplate</artifactId>
@@ -77,12 +76,6 @@
 			<groupId>commons-logging</groupId>
 			<artifactId>commons-logging</artifactId>
 		</dependency>
-
-		<dependency>
-			<groupId>org.junit.jupiter</groupId>
-			<artifactId>junit-jupiter</artifactId>
-			<scope>test</scope>
-		</dependency>
 		<dependency>
 			<groupId>org.reflections</groupId>
 			<artifactId>reflections</artifactId>
@@ -95,32 +88,22 @@
 			<groupId>org.apache.commons</groupId>
 			<artifactId>commons-math3</artifactId>
 		</dependency>
-
 		<dependency>
 			<groupId>com.jayway.jsonpath</groupId>
 			<artifactId>json-path</artifactId>
 		</dependency>
-
 		<dependency>
 			<groupId>com.ibm.icu</groupId>
 			<artifactId>icu4j</artifactId>
 		</dependency>
-
-		<dependency>
-			<groupId>org.antlr</groupId>
-			<artifactId>stringtemplate</artifactId>
-			<version>3.2.1</version>
-		</dependency>
 		<dependency>
 			<groupId>org.apache.spark</groupId>
 			<artifactId>spark-core_2.11</artifactId>
 		</dependency>
-
 		<dependency>
 			<groupId>org.apache.spark</groupId>
 			<artifactId>spark-sql_2.11</artifactId>
 		</dependency>
-
 	</dependencies>
 
 </project>
diff --git a/dhp-pace-core/src/main/java/eu/dnetlib/pace/config/DedupConfig.java b/dhp-pace-core/src/main/java/eu/dnetlib/pace/config/DedupConfig.java
index eeec68ae6..ac0ef08e4 100644
--- a/dhp-pace-core/src/main/java/eu/dnetlib/pace/config/DedupConfig.java
+++ b/dhp-pace-core/src/main/java/eu/dnetlib/pace/config/DedupConfig.java
@@ -17,8 +17,6 @@ import java.util.stream.Collectors;
 import org.antlr.stringtemplate.StringTemplate;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
-import org.apache.commons.logging.Log;
-import org.apache.commons.logging.LogFactory;
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.databind.ObjectMapper;
diff --git a/dhp-workflows/dhp-dedup-openaire/pom.xml b/dhp-workflows/dhp-dedup-openaire/pom.xml
index a6e34bb96..750cc7028 100644
--- a/dhp-workflows/dhp-dedup-openaire/pom.xml
+++ b/dhp-workflows/dhp-dedup-openaire/pom.xml
@@ -87,6 +87,11 @@
             <artifactId>spark-sql_2.11</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.apache.spark</groupId>
+            <artifactId>spark-graphx_2.11</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>com.arakelian</groupId>
             <artifactId>java-jq</artifactId>
@@ -102,15 +107,6 @@
             <artifactId>jaxen</artifactId>
         </dependency>
 
-        <dependency>
-            <groupId>org.apache.spark</groupId>
-            <artifactId>spark-graphx_2.11</artifactId>
-        </dependency>
-        <dependency>
-            <groupId>org.apache.spark</groupId>
-            <artifactId>spark-sql_2.11</artifactId>
-        </dependency>
-
         <dependency>
             <groupId>com.influxdb</groupId>
             <artifactId>influxdb-client-java</artifactId>
diff --git a/dhp-workflows/dhp-graph-provision/pom.xml b/dhp-workflows/dhp-graph-provision/pom.xml
index ae8f3b53a..413cc8cdd 100644
--- a/dhp-workflows/dhp-graph-provision/pom.xml
+++ b/dhp-workflows/dhp-graph-provision/pom.xml
@@ -78,7 +78,7 @@
         </dependency>
         <dependency>
             <groupId>org.antlr</groupId>
-            <artifactId>stringtemplate</artifactId>
+            <artifactId>ST4</artifactId>
         </dependency>
         <dependency>
             <groupId>org.apache.solr</groupId>
diff --git a/pom.xml b/pom.xml
index eb0ee4466..4707f7d01 100644
--- a/pom.xml
+++ b/pom.xml
@@ -451,7 +451,13 @@
 			<dependency>
 				<groupId>org.antlr</groupId>
 				<artifactId>stringtemplate</artifactId>
-				<version>4.0</version>
+				<version>3.2.1</version>
+			</dependency>
+
+			<dependency>
+				<groupId>org.antlr</groupId>
+				<artifactId>ST4</artifactId>
+				<version>4.3.4</version>
 			</dependency>
 
 			<dependency>
@@ -544,170 +550,61 @@
 				<version>4.8.71</version>
 			</dependency>
 
-					<dependency>
-						<groupId>edu.cmu</groupId>
-						<artifactId>secondstring</artifactId>
-						<version>1.0.0</version>
-					</dependency>
-					<dependency>
-						<groupId>org.antlr</groupId>
-						<artifactId>stringtemplate</artifactId>
-						<version>3.2</version>
-					</dependency>
-
-					<dependency>
-						<groupId>com.fasterxml.jackson.core</groupId>
-						<artifactId>jackson-databind</artifactId>
-						<version>${jackson.version}</version>
-						<scope>provided</scope>
-					</dependency>
-					<dependency>
-						<groupId>com.fasterxml.jackson.dataformat</groupId>
-						<artifactId>jackson-dataformat-xml</artifactId>
-						<version>${jackson.version}</version>
-						<scope>provided</scope>
-					</dependency>
-					<dependency>
-						<groupId>com.fasterxml.jackson.module</groupId>
-						<artifactId>jackson-module-jsonSchema</artifactId>
-						<version>${jackson.version}</version>
-						<scope>provided</scope>
-					</dependency>
-					<dependency>
-						<groupId>com.fasterxml.jackson.core</groupId>
-						<artifactId>jackson-core</artifactId>
-						<version>${jackson.version}</version>
-						<scope>provided</scope>
-					</dependency>
-					<dependency>
-						<groupId>com.fasterxml.jackson.core</groupId>
-						<artifactId>jackson-annotations</artifactId>
-						<version>${jackson.version}</version>
-						<scope>provided</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>org.mockito</groupId>
-						<artifactId>mockito-core</artifactId>
-						<version>${mockito-core.version}</version>
-						<scope>test</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>org.mockito</groupId>
-						<artifactId>mockito-junit-jupiter</artifactId>
-						<version>${mockito-core.version}</version>
-						<scope>test</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>org.apache.commons</groupId>
-						<artifactId>commons-math3</artifactId>
-						<version>3.6.1</version>
-					</dependency>
-
-					<dependency>
-						<groupId>com.google.guava</groupId>
-						<artifactId>guava</artifactId>
-						<version>${google.guava.version}</version>
-					</dependency>
-					<dependency>
-						<groupId>com.google.code.gson</groupId>
-						<artifactId>gson</artifactId>
-						<version>${google.gson.version}</version>
-					</dependency>
-
-					<dependency>
-						<groupId>org.apache.commons</groupId>
-						<artifactId>commons-lang3</artifactId>
-						<version>${commons.lang.version}</version>
-					</dependency>
-
-					<dependency>
-						<groupId>commons-io</groupId>
-						<artifactId>commons-io</artifactId>
-						<version>${commons.io.version}</version>
-					</dependency>
-					<dependency>
-						<groupId>commons-collections</groupId>
-						<artifactId>commons-collections</artifactId>
-						<version>${commons.collections.version}</version>
-					</dependency>
-					<dependency>
-						<groupId>commons-logging</groupId>
-						<artifactId>commons-logging</artifactId>
-						<version>${commons.logging.version}</version>
-					</dependency>
-					<dependency>
-						<groupId>org.apache.spark</groupId>
-						<artifactId>spark-core_2.11</artifactId>
-						<version>${spark.version}</version>
-						<scope>provided</scope>
-					</dependency>
-					<dependency>
-						<groupId>org.apache.spark</groupId>
-						<artifactId>spark-graphx_2.11</artifactId>
-						<version>${spark.version}</version>
-						<scope>provided</scope>
-					</dependency>
-					<dependency>
-						<groupId>org.apache.spark</groupId>
-						<artifactId>spark-sql_2.11</artifactId>
-						<version>${spark.version}</version>
-						<scope>provided</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>org.junit.jupiter</groupId>
-						<artifactId>junit-jupiter</artifactId>
-						<version>${junit-jupiter.version}</version>
-						<scope>test</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>org.reflections</groupId>
-						<artifactId>reflections</artifactId>
-						<version>0.9.10</version>
-					</dependency>
-
-					<dependency>
-						<groupId>org.scala-lang</groupId>
-						<artifactId>scala-library</artifactId>
-						<version>${scala.version}</version>
-					</dependency>
-
-					<dependency>
-						<groupId>org.apache.oozie</groupId>
-						<artifactId>oozie-client</artifactId>
-						<version>5.1.0</version>
-					</dependency>
-					<dependency>
-						<groupId>com.jayway.jsonpath</groupId>
-						<artifactId>json-path</artifactId>
-						<version>2.4.0</version>
-					</dependency>
-
-					<dependency>
-						<groupId>org.mockito</groupId>
-						<artifactId>mockito-core</artifactId>
-						<version>3.3.3</version>
-						<scope>test</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>org.mockito</groupId>
-						<artifactId>mockito-junit-jupiter</artifactId>
-						<version>3.3.3</version>
-						<scope>test</scope>
-					</dependency>
-
-					<dependency>
-						<groupId>com.ibm.icu</groupId>
-						<artifactId>icu4j</artifactId>
-						<version>70.1</version>
-					</dependency>
+			<dependency>
+				<groupId>com.fasterxml.jackson.dataformat</groupId>
+				<artifactId>jackson-dataformat-xml</artifactId>
+				<version>${jackson.version}</version>
+				<scope>provided</scope>
+			</dependency>
+			<dependency>
+				<groupId>com.fasterxml.jackson.module</groupId>
+				<artifactId>jackson-module-jsonSchema</artifactId>
+				<version>${jackson.version}</version>
+				<scope>provided</scope>
+			</dependency>
 
 
+			<dependency>
+				<groupId>org.apache.commons</groupId>
+				<artifactId>commons-math3</artifactId>
+				<version>3.6.1</version>
+			</dependency>
+
+
+			<dependency>
+				<groupId>com.google.code.gson</groupId>
+				<artifactId>gson</artifactId>
+				<version>${google.gson.version}</version>
+			</dependency>
+
+			<dependency>
+				<groupId>commons-collections</groupId>
+				<artifactId>commons-collections</artifactId>
+				<version>${commons.collections.version}</version>
+			</dependency>
+			<dependency>
+				<groupId>commons-logging</groupId>
+				<artifactId>commons-logging</artifactId>
+				<version>${commons.logging.version}</version>
+			</dependency>
+
+			<dependency>
+				<groupId>org.reflections</groupId>
+				<artifactId>reflections</artifactId>
+				<version>0.9.10</version>
+			</dependency>
+
+			<dependency>
+				<groupId>org.scala-lang</groupId>
+				<artifactId>scala-library</artifactId>
+				<version>${scala.version}</version>
+			</dependency>
+
+			<dependency>
+				<groupId>com.ibm.icu</groupId>
+				<artifactId>icu4j</artifactId>
+				<version>70.1</version>
+			</dependency>
 		</dependencies>
 	</dependencyManagement>