diff --git a/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb b/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
index 690b2151204daca07ac4aa29e7bec0e2a493ac0e..179404a571ef490a750171b2d9d93963969555f0 100644
--- a/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
+++ b/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('UCX', 'default'),
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
-    ('PMIx', '3.2.3'),  # We rely on this version since it is the newest supported by psmgmt
+    ('PMIx', '4.2.6'),  # We rely on this version since it is the newest supported by psmgmt
     ('UCC', 'default'),
 ]
 
diff --git a/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb b/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
index 6bb054ba122071f808ba2a0f0f5f5faf57ed1b9b..884cd075687ff7bfc60c96beb1cbdec9d665c579 100644
--- a/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
+++ b/Golden_Repo/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('UCX', 'default'),
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
-    ('PMIx', '3.2.3'),  # We rely on this version since it is the newest supported by psmgmt
+    ('PMIx', '4.2.6'),  # We rely on this version since it is the newest supported by psmgmt
     ('UCC', 'default'),
 ]
 
diff --git a/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb b/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
index 5f099296322b2e56b87c2530b0a72ab3fc36280c..25260176d568cc842cbdda6fdff4d213be036299 100644
--- a/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
+++ b/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
@@ -31,7 +31,7 @@ dependencies = [
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
     ('UCC', 'default'),
-    ('PMIx', '3.2.3'),
+    ('PMIx', '4.2.6'),
 ]
 
 configopts = '--enable-shared '
diff --git a/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb b/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
index 5bb7a448efc9018c201e7ffe08768e3833795e29..140398c52fd5f8cedfc92afba474b0eecae0991f 100644
--- a/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
+++ b/Overlays/deep_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
@@ -31,7 +31,7 @@ dependencies = [
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
     ('UCC', 'default'),
-    ('PMIx', '3.2.3'),
+    ('PMIx', '4.2.6'),
 ]
 
 configopts = '--enable-shared '
diff --git a/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb b/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
index 628afaded350470ca24258d66033303e71020ff1..daedd3f26c4a168d06db7f3a6b2e060afb625b5f 100644
--- a/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
+++ b/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('UCX', 'default'),
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
-    ('PMIx', '3.2.3'),  # We rely on this version since it is the newest supported by psmgmt
+    ('PMIx', '4.2.6'),  # We rely on this version since it is the newest supported by psmgmt
     ('UCC', 'default'),
 ]
 
diff --git a/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb b/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
index 894b648ec0ea3c94c8f2ff461c97be37bedae4d8..8130bad0612beba62aaf07fcc0f70854e66ba4de 100644
--- a/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
+++ b/Overlays/hdfml_overlay/o/OpenMPI/OpenMPI-4.1.4-NVHPC-23.1.eb
@@ -38,7 +38,7 @@ dependencies = [
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
     # We rely on this version since it is the newest supported by psmgmt
-    ('PMIx', '3.2.3'),
+    ('PMIx', '4.2.6'),
     ('UCC', 'default'),
 ]
 
diff --git a/Overlays/jureca_arm_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb b/Overlays/jureca_arm_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
index d13c7b205bb915a15513577d3a11e16cbe0306e7..f1f1285ec9aba9e1c5f20d3d05fddb9bb14a74f1 100644
--- a/Overlays/jureca_arm_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
+++ b/Overlays/jureca_arm_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
@@ -35,7 +35,7 @@ dependencies = [
     ('UCX', 'default'),
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
-    ('PMIx', '3.2.3'),  # We rely on this version since it is the newest supported by psmgmt
+    ('PMIx', '4.2.6'),  # We rely on this version since it is the newest supported by psmgmt
     ('UCC', 'default'),
 ]
 
diff --git a/Overlays/jureca_spr_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb b/Overlays/jureca_spr_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
index 49c9419c1eaa7ed650c95d3e37e88f289642688c..3024d08685f2f46326036a1cb2bc0b450981d8e6 100644
--- a/Overlays/jureca_spr_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
+++ b/Overlays/jureca_spr_overlay/o/OpenMPI/OpenMPI-4.1.4-GCC-11.3.0.eb
@@ -37,7 +37,7 @@ dependencies = [
     ('UCX', 'default'),
     ('CUDA', '12.0', '', SYSTEM),
     ('libevent', '2.1.12'),
-    ('PMIx', '3.2.3'),  # We rely on this version since it is the newest supported by psmgmt
+    ('PMIx', '4.2.6'),  # We rely on this version since it is the newest supported by psmgmt
     ('UCC', 'default'),
 ]
 
diff --git a/Overlays/jurecadc_overlay/b/BullMPI/BullMPI-4.1.4-GCC-11.3.0.eb b/Overlays/jurecadc_overlay/b/BullMPI/BullMPI-4.1.4-GCC-11.3.0.eb
index 8fadbbf13ce87fc0ce78a10ffda287fca76c53ac..a0d6e9e3a0e1c18c9b339264ba7a7db23ddfc0a4 100644
--- a/Overlays/jurecadc_overlay/b/BullMPI/BullMPI-4.1.4-GCC-11.3.0.eb
+++ b/Overlays/jurecadc_overlay/b/BullMPI/BullMPI-4.1.4-GCC-11.3.0.eb
@@ -29,7 +29,7 @@ dependencies = [
     ('UCX', 'default'),
     ('CUDA', '11.7', '', SYSTEM),
     ('libevent', '2.1.12'),
-    ('PMIx', '3.2.3'),  # We rely on this version since it is the newest supported by psmgmt
+    ('PMIx', '4.2.6'),  # We rely on this version since it is the newest supported by psmgmt
     ('UCC', 'default'),
 ]