diff --git a/SOL005/NSDManagement-API/NSDManagementKeywords.robot b/SOL005/NSDManagement-API/NSDManagementKeywords.robot
index 874ec1a0af8c7a27f1892c935e07de828818b61f..3a5dcd2d8bb865f94f6e1ff94a2f37a397cccfee 100644
--- a/SOL005/NSDManagement-API/NSDManagementKeywords.robot
+++ b/SOL005/NSDManagement-API/NSDManagementKeywords.robot
@@ -359,6 +359,7 @@ GET NSD Content with Range Request
     Set Headers    {"Range": "${range}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/ns_descriptors/${nsdInfoIdZip}/nsd_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
 
@@ -369,6 +370,7 @@ GET NSD Content with invalid Range Request
     Set Headers    {"Range": "${erroneousRange}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/ns_descriptors/${nsdInfoIdZip}/nsd_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
 
@@ -671,6 +673,7 @@ Get PNFD Content with Range Request
     Set Headers    {"Range": "${range}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/pnf_descriptors/${pnfdInfoId}/pnfd_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
     
@@ -680,6 +683,7 @@ Get PNFD Content with invalid Range Request
     Set Headers    {"Range": "${erroneousRange}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/pnf_descriptors/${pnfdInfoId}/pnfd_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
 
diff --git a/SOL005/VNFPackageManagement-API/VNFPackageManagementKeywords.robot b/SOL005/VNFPackageManagement-API/VNFPackageManagementKeywords.robot
index 1a81bdcf0855e383e143172676bcc8ae8ef0b459..d53c817a46062ef5dd8f08646a78637b0f9d1027 100644
--- a/SOL005/VNFPackageManagement-API/VNFPackageManagementKeywords.robot
+++ b/SOL005/VNFPackageManagement-API/VNFPackageManagementKeywords.robot
@@ -484,6 +484,7 @@ GET Individual VNF Package Content with Range Request
     Set Headers    {"Range": "bytes=${range}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/package_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
 
@@ -493,6 +494,7 @@ GET Individual VNF Package Content with explicit Range Request
     Set Headers    {"Range": "bytes=${range}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/package_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
 
@@ -516,6 +518,7 @@ GET Individual VNF Package Content with invalid Range Request
     Set Headers    {"Range": "bytes=${erroneousRange}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/package_content
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
 
@@ -649,6 +652,7 @@ GET Individual VNF Package Artifact with Range Request
     Set Headers    {"Range": "bytes=${range}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/artifacts/${artifactPath}
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
     
@@ -659,6 +663,7 @@ GET Individual VNF Package Artifact with invalid Range Request
     Set Headers    {"Range": "bytes=${erroneousRange}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/artifacts/${artifactPath}
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
  
@@ -1196,6 +1201,7 @@ Get Artifact in VNF Package with Range Request
     Set Headers    {"Range": "bytes=${range}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/artifacts
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
     
@@ -1229,6 +1235,7 @@ GET VNF Package Artifact with invalid Range Request
     Set Headers    {"Range": "bytes=${erroneousRange}"}
     Run Keyword If    ${AUTH_USAGE} == 1    Set Headers    {"${AUTHORIZATION_HEADER}":"${AUTHORIZATION_TOKEN}"}
     REST.GET    ${apiRoot}/${apiName}/${apiMajorVersion}/vnf_packages/${vnfPackageId}/artifacts
+    Unset Headers	["Range"]
     ${output}=    Output    response
     Set Suite Variable    ${response}    ${output}
     
diff --git a/requirements.txt b/requirements.txt
index bafc102d3843316cb6cca0a589fffb5deb65e8f5..4f00299b7ec3c17280e3269345fe687d2d7815e7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,9 +1,9 @@
 ## To install the libraries, use:
 # pip -r requirements.txt
 
-
+git+https://github.com/etsi-cti-admin/RESTinstance
 robotframework==3.1
-RESTinstance==1.0.0rc4
+#RESTinstance==1.0.0rc4
 robotframework-dependencylibrary==1.0.0.post1
 robotframework-jsonlibrary==0.3
 robotframework-jsonschemalibrary==1.0