diff --git a/buildenv/jenkins/variables/defaults.yml b/buildenv/jenkins/variables/defaults.yml
index 043efebdbb9..8328566737d 100644
--- a/buildenv/jenkins/variables/defaults.yml
+++ b/buildenv/jenkins/variables/defaults.yml
@@ -218,9 +218,10 @@ ppc64le_linux:
     all: '--enable-jitserver'
   build_env:
     cmd:
-      all: 'source /home/jenkins/set_gcc_10.3.0_env'
+      all: 'source /home/jenkins/set_gcc_11.2.0_env'
       8: 'source /home/jenkins/set_gcc7.5.0_env'
       11: 'source /home/jenkins/set_gcc7.5.0_env'
+      17: 'source /home/jenkins/set_gcc_10.3.0_env'
 #========================================#
 # Linux PPCLE 64bits /w JITSERVER
 #========================================#
@@ -250,9 +251,10 @@ s390x_linux:
     next: '!sw.os.rhel.8'
   build_env:
     cmd:
-      all: 'source /home/jenkins/set_gcc_10.3.0_env'
+      all: 'source /home/jenkins/set_gcc_11.2.0_env'
       8: 'source /home/jenkins/set_gcc7.5.0_env'
       11: 'source /home/jenkins/set_gcc7.5.0_env'
+      17: 'source /home/jenkins/set_gcc_10.3.0_env'
 #========================================#
 # Linux S390 64bits /w JITSERVER
 #========================================#
@@ -313,10 +315,11 @@ x86-64_linux:
     all: '--enable-jitserver'
   build_env:
     cmd:
-      all: 'source /home/jenkins/set_gcc_10.3.0_env'
+      all: 'source /home/jenkins/set_gcc_11.2.0_env'
+      # use default gcc for 8, 11 (v7.5)
       8: ''
       11: ''
-      # use default gcc for 8, 11 (v7.5)
+      17: 'source /home/jenkins/set_gcc_10.3.0_env'
     vars: 'OPENJ9_JAVA_OPTIONS=-Xdump:system+java:events=systhrow,filter=java/lang/ClassCastException,request=exclusive+prepwalk+preempt'
   extra_test_labels:
     11: '!sw.os.cent.6'
@@ -541,9 +544,10 @@ x86-64_linux_criu:
       11: ''
   build_env:
     cmd:
-      all: 'source /home/jenkins/set_gcc_10.3.0_env'
+      all: 'source /home/jenkins/set_gcc_11.2.0_env'
       8: 'source /home/jenkins/set_gcc7.5.0_env'
       11: 'source /home/jenkins/set_gcc7.5.0_env'
+      17: 'source /home/jenkins/set_gcc_10.3.0_env'
 ppc64le_linux_criu:
   extends: ['ppc64le_linux', 'criu']
 s390x_linux_criu: