diff --git a/benchmark/pom.xml b/benchmark/pom.xml
index f11fe7bb3..72b1fc913 100644
--- a/benchmark/pom.xml
+++ b/benchmark/pom.xml
@@ -41,7 +41,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/extensions/database/pom.xml b/extensions/database/pom.xml
index 2128818d8..7c3927155 100644
--- a/extensions/database/pom.xml
+++ b/extensions/database/pom.xml
@@ -183,7 +183,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/extensions/gdata/pom.xml b/extensions/gdata/pom.xml
index 01ab08e8a..39062c347 100644
--- a/extensions/gdata/pom.xml
+++ b/extensions/gdata/pom.xml
@@ -145,7 +145,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/extensions/gdata/tests/conf/tests.xml b/extensions/gdata/tests/conf/tests.xml
index df5920edc..0cead5318 100644
--- a/extensions/gdata/tests/conf/tests.xml
+++ b/extensions/gdata/tests/conf/tests.xml
@@ -1,4 +1,4 @@
-<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
  
 <suite name="GData extension">
   <test name="tests">
diff --git a/extensions/jython/pom.xml b/extensions/jython/pom.xml
index 4067a9ec8..8b0ef952d 100644
--- a/extensions/jython/pom.xml
+++ b/extensions/jython/pom.xml
@@ -127,7 +127,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/extensions/jython/tests/conf/tests.xml b/extensions/jython/tests/conf/tests.xml
index 86ba31ab2..f5c929bc8 100644
--- a/extensions/jython/tests/conf/tests.xml
+++ b/extensions/jython/tests/conf/tests.xml
@@ -1,4 +1,4 @@
-<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
  
 <suite name="Jython extension">
   <test name="tests">
diff --git a/extensions/pc-axis/pom.xml b/extensions/pc-axis/pom.xml
index 5f57ba1ff..7d4ddd5e3 100644
--- a/extensions/pc-axis/pom.xml
+++ b/extensions/pc-axis/pom.xml
@@ -118,7 +118,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
 
diff --git a/extensions/phonetic/pom.xml b/extensions/phonetic/pom.xml
index b976baf1e..a893d65f2 100644
--- a/extensions/phonetic/pom.xml
+++ b/extensions/phonetic/pom.xml
@@ -124,7 +124,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>
diff --git a/extensions/phonetic/tests/conf/tests.xml b/extensions/phonetic/tests/conf/tests.xml
index 7010579da..7ad8efc22 100644
--- a/extensions/phonetic/tests/conf/tests.xml
+++ b/extensions/phonetic/tests/conf/tests.xml
@@ -1,4 +1,4 @@
-<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
  
 <suite name="Wikidata extension">
   <test name="tests">
diff --git a/extensions/wikidata/pom.xml b/extensions/wikidata/pom.xml
index 0bf39c0f1..cc082c779 100644
--- a/extensions/wikidata/pom.xml
+++ b/extensions/wikidata/pom.xml
@@ -161,7 +161,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/extensions/wikidata/tests/conf/tests.xml b/extensions/wikidata/tests/conf/tests.xml
index 860c0c313..c509c23a8 100644
--- a/extensions/wikidata/tests/conf/tests.xml
+++ b/extensions/wikidata/tests/conf/tests.xml
@@ -1,4 +1,4 @@
-<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
  
 <suite name="Wikidata extension" object-factory="org.powermock.modules.testng.PowerMockObjectFactory">
   <test name="tests">
diff --git a/main/pom.xml b/main/pom.xml
index cbfc31669..ed6c977e2 100644
--- a/main/pom.xml
+++ b/main/pom.xml
@@ -356,7 +356,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.1.0</version>
+      <version>7.3.0</version>
       <scope>test</scope>
     </dependency>
     <dependency>
diff --git a/main/tests/server/conf/tests.xml b/main/tests/server/conf/tests.xml
index dfe3ec0d3..76e9f3e79 100644
--- a/main/tests/server/conf/tests.xml
+++ b/main/tests/server/conf/tests.xml
@@ -24,7 +24,7 @@
   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
   POSSIBILITY OF SUCH DAMAGE.
 -->
-<!DOCTYPE suite SYSTEM "http://testng.org/testng-1.0.dtd" >
+<!DOCTYPE suite SYSTEM "https://testng.org/testng-1.0.dtd" >
  
 <suite name="Refine Unit Tests">
   <test name="tests">
diff --git a/main/tests/server/src/com/google/refine/commands/lang/LoadLanguageCommandTests.java b/main/tests/server/src/com/google/refine/commands/lang/LoadLanguageCommandTests.java
index f1185ce99..a5f71edba 100644
--- a/main/tests/server/src/com/google/refine/commands/lang/LoadLanguageCommandTests.java
+++ b/main/tests/server/src/com/google/refine/commands/lang/LoadLanguageCommandTests.java
@@ -11,7 +11,6 @@ import java.io.IOException;
 import javax.servlet.ServletException;
 
 import org.testng.annotations.BeforeMethod;
-import org.testng.annotations.BeforeTest;
 import org.testng.annotations.Test;
 
 import com.fasterxml.jackson.core.JsonParseException;
@@ -28,13 +27,9 @@ import edu.mit.simile.butterfly.ButterflyModule;
 
 public class LoadLanguageCommandTests extends CommandTestBase {
 
-    @BeforeTest
-    public void setUpTest() throws IOException {
-        FileProjectManager.initialize(TestUtils.createTempDirectory("openrefine-test-workspace-dir"));
-    }
-
     @BeforeMethod
-    public void setUpCommand() {
+    public void setUpCommand() throws IOException {
+        FileProjectManager.initialize(TestUtils.createTempDirectory("openrefine-test-workspace-dir"));
         command = new LoadLanguageCommand();
         ButterflyModule coreModule = mock(ButterflyModule.class);