diff --git a/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraEndPoints.java b/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraEndPoints.java
index 54f03b0..615610c 100644
--- a/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraEndPoints.java
+++ b/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraEndPoints.java
@@ -52,7 +52,15 @@ public interface JiraEndPoints {
   @PUT("rest/api/2/issue/{issueIdOrKey}")
   Call<Object> updateIssue(@Path("issueIdOrKey") String issueIdOrKey, @Body Object issue,
       @QueryMap Map<String, String> queryMap);
-
+  
+  @PUT("rest/api/2/issue/{issueIdOrKey}")
+  Call<Object> addFixVersionToIssue(@Path("issueIdOrKey") String issueIdOrKey, @Body Object version,
+      @QueryMap Map<String, String> queryMap);
+  
+  @PUT("rest/api/2/issue/{issueIdOrKey}")
+  Call<Object> removeFixVersionFromIssue(@Path("issueIdOrKey") String issueIdOrKey, @Body Object version,
+      @QueryMap Map<String, String> queryMap);
+  
   @POST("rest/api/2/issue/bulk")
   Call<Object> createIssues(@Body Object issues);
 
diff --git a/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraService.java b/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraService.java
index a4bbeb4..3469bdf 100644
--- a/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraService.java
+++ b/src/main/java/org/thoughtslive/jenkins/plugins/jira/service/JiraService.java
@@ -6,6 +6,7 @@ import static org.thoughtslive.jenkins.plugins.jira.util.Common.parseResponse;
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.fasterxml.jackson.datatype.joda.JodaModule;
+import com.google.common.collect.ImmutableList;
 import com.google.common.collect.ImmutableMap;
 import com.google.common.collect.Maps;
 import hudson.ProxyConfiguration;
@@ -199,6 +200,43 @@ public class JiraService {
     }
   }
 
+  public ResponseData<Object> addFixVersionToIssue(final String issueIdOrKey, final Object version,
+      final Map<String, String> queryParams) {
+    
+    ImmutableMap.Builder<Object, Object> versionUpdate = ImmutableMap.builder()
+        .put("update", ImmutableMap.builder( ).put("fixVersions", 
+            ImmutableList.builder( ).add(
+                ImmutableMap.builder( ).put("add", 
+                    ImmutableMap.builder( ).put("name", version).build( )
+                    ).build()
+                ).build()
+            ).build() );
+    
+    try {
+      return parseResponse(jiraEndPoints.addFixVersionToIssue(issueIdOrKey, versionUpdate.build(), queryParams).execute());
+    } catch (Exception e) {
+      return buildErrorResponse(e);
+    }
+  }
+  
+  public ResponseData<Object> removeFixVersionFromIssue(final String issueIdOrKey, final Object version,
+      final Map<String, String> queryParams) {
+    
+    ImmutableMap.Builder<Object, Object> versionUpdate = ImmutableMap.builder()
+        .put("update", ImmutableMap.builder( ).put("fixVersions", 
+            ImmutableList.builder( ).add(
+                ImmutableMap.builder( ).put("remove", 
+                    ImmutableMap.builder( ).put("name", version).build( )
+                    ).build()
+                ).build()
+            ).build() );
+    try {
+      return parseResponse(jiraEndPoints.removeFixVersionFromIssue(issueIdOrKey, versionUpdate.build(), queryParams).execute());
+    } catch (Exception e) {
+      return buildErrorResponse(e);
+    }
+  }
+  
   public ResponseData<Void> assignIssue(final String issueIdorKey, final String userName) {
     try {
       Map input = Maps.newHashMap();