diff --git a/concourse/pipelines/templates/gpdb-tpl.yml b/concourse/pipelines/templates/gpdb-tpl.yml
index 1846d0fce3b9b735659714e48975ac5ae7703af6..1ffd2a5f8a05870785026a37f2c16d7945cb64c2 100644
--- a/concourse/pipelines/templates/gpdb-tpl.yml
+++ b/concourse/pipelines/templates/gpdb-tpl.yml
@@ -422,13 +422,6 @@ resources:
     json_key: ((gcs-key))
     regexp: centos6/libquicklz-devel-(\d.*)\.el6\.x86_64\.rpm
 
-- name: libsigar-centos6
-  type: gcs
-  source:
-    bucket: ((pivotal-gp-internal-artifacts-gcs-bucket))
-    json_key: ((gcs-key))
-    regexp: centos6/sigar-rhel6_x86_64-(.*)\.targz
-
 {% endif %}
 {% if "centos7" in os_types %}
 - name: libquicklz-centos7
@@ -445,13 +438,6 @@ resources:
     json_key: ((gcs-key))
     regexp: centos7/libquicklz-devel-(\d.*)\.el7\.x86_64\.rpm
 
-- name: libsigar-centos7
-  type: gcs
-  source:
-    bucket: ((pivotal-gp-internal-artifacts-gcs-bucket))
-    json_key: ((gcs-key))
-    regexp: centos7/sigar-rhel7_x86_64-(.*)\.targz
-
 {% endif %}
 {% if "centos6" in os_types %}
 - name: python-centos6
@@ -854,8 +840,6 @@ jobs:
       resource: libquicklz-centos6
     - get: libquicklz-devel-installer
       resource: libquicklz-devel-centos6
-    - get: libsigar-installer
-      resource: libsigar-centos6
     - get: python-tarball
       resource: python-centos6
   - task: sync_tools
@@ -898,8 +882,6 @@ jobs:
       resource: libquicklz-centos7
     - get: libquicklz-devel-installer
       resource: libquicklz-devel-centos7
-    - get: libsigar-installer
-      resource: libsigar-centos7
     - get: python-tarball
       resource: python-centos7
   - task: sync_tools
diff --git a/concourse/scripts/compile_gpdb.bash b/concourse/scripts/compile_gpdb.bash
index 37488b9c789a64b7706ca9ef2d43e9d101511d64..9318dab1bcf7eda8008e4871988fc309114914a7 100755
--- a/concourse/scripts/compile_gpdb.bash
+++ b/concourse/scripts/compile_gpdb.bash
@@ -15,21 +15,18 @@ function expand_glob_ensure_exists() {
   echo "${glob[0]}"
 }
 
-function prep_env_for_centos() {
-  case "${TARGET_OS_VERSION}" in
-    6|7) BLD_ARCH=rhel${TARGET_OS_VERSION}_x86_64 ;;
-    *) echo "TARGET_OS_VERSION not set or recognized for Centos/RHEL" ; exit 1 ;;
-  esac
-}
-
 function install_deps_for_centos() {
   # quicklz is proprietary code that we cannot put in our public Docker images.
   rpm -i libquicklz-installer/libquicklz-*.rpm
   rpm -i libquicklz-devel-installer/libquicklz-*.rpm
-  # install libsigar from tar.gz
-  tar zxf libsigar-installer/sigar-*.targz -C gpdb_src/gpAux/ext
 }
 
+function prep_env_for_centos() {
+  case "${TARGET_OS_VERSION}" in
+    6|7) BLD_ARCH=rhel${TARGET_OS_VERSION}_x86_64 ;;
+    *) echo "TARGET_OS_VERSION not set or recognized for Centos/RHEL" ; exit 1 ;;
+  esac
+}
 
 function link_tools_for_centos() {
   tar xf python-tarball/python-*.tar.gz -C $(pwd)/${GPDB_SRC_PATH}/gpAux/ext
@@ -164,8 +161,8 @@ function _main() {
 
   case "${TARGET_OS}" in
     centos)
-      prep_env_for_centos
       install_deps_for_centos
+      prep_env_for_centos
       link_tools_for_centos
       ;;
     sles)
diff --git a/concourse/scripts/sync_tools.bash b/concourse/scripts/sync_tools.bash
index 62f30146816b85ec9ab9842ae6f715fd2d1cee5c..9cdddd05bcb2aa2ff67cc7bb9d8d250f67036b73 100755
--- a/concourse/scripts/sync_tools.bash
+++ b/concourse/scripts/sync_tools.bash
@@ -38,14 +38,9 @@ function _main() {
         ;;
   esac
 
-  # We have moved out of ivy for Centos{6,7}, so make sync_tools
-  # will not create the necessary directory for centos.
-  if [ "${TARGET_OS}" = centos ]; then
-    mkdir -p ${GPDB_SRC_PATH}/gpAux/ext/${BLD_ARCH}
-  fi
   make_sync_tools
 
-  # Move ext directory to output dir.
+  # Move ext directory to output dir
   mv ${GPDB_SRC_PATH}/gpAux/ext gpAux_ext/
 
 }
diff --git a/concourse/tasks/compile_gpdb.yml b/concourse/tasks/compile_gpdb.yml
index 0666cc58c346160604c1b19c46111b7e2269af3b..8a5f1eb08fcbbbc29e33574951f1eac7a24c9171 100644
--- a/concourse/tasks/compile_gpdb.yml
+++ b/concourse/tasks/compile_gpdb.yml
@@ -7,7 +7,6 @@ inputs:
   - name: gpAux_ext
   - name: libquicklz-installer
   - name: libquicklz-devel-installer
-  - name: libsigar-installer
   - name: python-tarball
 outputs:
   - name: gpdb_artifacts
diff --git a/gpAux/releng/make/dependencies/ivy.xml b/gpAux/releng/make/dependencies/ivy.xml
index 254553d89ca6d13281678a52b4f2f6461f318cd9..79177fcda01f37c5bf8468b54f855c819bf180ca 100644
--- a/gpAux/releng/make/dependencies/ivy.xml
+++ b/gpAux/releng/make/dependencies/ivy.xml
@@ -16,7 +16,7 @@
       <dependency org="OpenSSL"         name="openssl"         rev="1.0.2l"         conf="suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64;aix7_ppc_64->aix7_ppc_64" />
       <dependency org="gnu"             name="libstdc"         rev="6.0.22"         conf="suse11_x86_64->suse11_x86_64;sles11_x86_64->suse11_x86_64" />
       <dependency org="third-party"     name="ext"             rev="gpdb6_ext-4.2"  conf="suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64" />
-      <dependency org="Hyperic"         name="sigar"           rev="1.6.5"          conf="suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64" />
+      <dependency org="Hyperic"         name="sigar"           rev="1.6.5"          conf="rhel6_x86_64->rhel6_x86_64;rhel7_x86_64->rhel7_x86_64;suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64" />
       <dependency org="Python"          name="python-gpdb5"    rev="2.7.12"         conf="suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64" />
       <dependency org="cURL"            name="curl"            rev="7.54.0"         conf="suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64" />
       <dependency org="OpenLDAP"        name="openldap"        rev="2.4.44"         conf="suse11_x86_64->sles11_x86_64;sles11_x86_64->sles11_x86_64" />