diff --git a/pom.xml b/pom.xml
index b9c56cc0..344b18f8 100644
--- a/pom.xml
+++ b/pom.xml
@@ -224,26 +224,26 @@
         <dependency>
             <groupId>junit</groupId>
             <artifactId>junit</artifactId>
-            <version>[4.7,)</version>
+            <version>4.12</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.hamcrest</groupId>
-            <artifactId>java-hamcrest</artifactId>
-            <version>[2.0.0.0,)</version>
+            <artifactId>hamcrest</artifactId>
+            <version>2.1</version>
             <scope>test</scope>
         </dependency>
 
         <dependency>
             <groupId>uk.co.datumedge</groupId>
             <artifactId>hamcrest-json</artifactId>
-            <version>[0.2,)</version>
+            <version>0.2</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.mockito</groupId>
             <artifactId>mockito-core</artifactId>
-            <version>[2.0,)</version>
+            <version>2.23.4</version>
             <scope>test</scope>
         </dependency>
         <dependency>