diff --git a/Compiler/openmpi/files/variants.merlin6 b/Compiler/openmpi/files/variants.merlin6
index 18bbcdc..7e9bcb4 100644
--- a/Compiler/openmpi/files/variants.merlin6
+++ b/Compiler/openmpi/files/variants.merlin6
@@ -37,8 +37,10 @@ openmpi/4.0.7-1_slurm   stable     gcc/10.2.0 cuda/11.4.3 b:ucx/1.11.2-1_slurm
 openmpi/4.1.1_slurm     unstable   gcc/10.2.0 cuda/11.3.0 b:ucx/1.11.2_slurm
 openmpi/4.1.1-1_slurm   unstable   gcc/10.2.0 cuda/11.3.0 b:ucx/1.10.0_slurm
 
-openmpi/4.1.3_slurm     stable   gcc/{9.3.0,10.3.0,11.2.0} cuda/11.5.1 b:ucx/1.12.1_slurm
-openmpi/4.1.4_slurm     stable	 gcc/10.4.0 cuda/11.5.1 b:ucx/1.12.1_slurm
+openmpi/4.1.3_slurm     stable     gcc/{9.3.0,10.3.0,11.2.0} cuda/11.5.1 b:ucx/1.12.1_slurm
+openmpi/4.1.4_slurm     stable	   gcc/10.4.0 cuda/11.5.1 b:ucx/1.12.1_slurm
+
+openmpi/4.1.5_slurm     unstable   gcc/10.4.0 cuda/12.1.1 b:ucx/1.14.1_slurm
 
 openmpi/4.0.5-1_dgx     deprecated gcc/{8.4.0,9.3.0,10.2.0} cuda/11.2.2 b:ucx/1.10.0-1_dgx
 openmpi/4.1.0-1_dgx     deprecated gcc/10.2.0 cuda/11.2.2 b:ucx/1.10.0-1_dgx
diff --git a/Libraries/GDRCopy/files/variants.merlin6 b/Libraries/GDRCopy/files/variants.merlin6
index 7d46b14..d915a48 100644
--- a/Libraries/GDRCopy/files/variants.merlin6
+++ b/Libraries/GDRCopy/files/variants.merlin6
@@ -1 +1,2 @@
 GDRCopy/2.2.0     stable     cuda/11.2.2  
+GDRCopy/2.3.0     unstable   b:cuda/12.1.1
diff --git a/Libraries/ucx/build b/Libraries/ucx/build
index a89ce97..bafe3df 100755
--- a/Libraries/ucx/build
+++ b/Libraries/ucx/build
@@ -46,6 +46,7 @@ pbuild::pre_configure() {
   pbuild::add_configure_args "--enable-cma"
   pbuild::add_configure_args "--enable-mt"
   pbuild::add_configure_args "--with-verbs"
+  pbuild::add_configure_args "--without-go"
 
   if [[ -n "${CUDA_VERSION}" ]]; then
     pbuild::add_configure_args "--with-cuda=${CUDA_HOME}"
diff --git a/Libraries/ucx/files/variants.merlin6 b/Libraries/ucx/files/variants.merlin6
index 2cc60e6..467f758 100644
--- a/Libraries/ucx/files/variants.merlin6
+++ b/Libraries/ucx/files/variants.merlin6
@@ -15,6 +15,8 @@ ucx/1.13.1_slurm          stable     b:cuda/11.5.1 b:doxygen/1.9.2 b:knem/1.1.4
 ucx/1.13.1-3_slurm        unstable   b:cuda/11.1.0 b:doxygen/1.9.2 b:knem/1.1.4 b:GDRCopy/2.2.0
 
 ucx/1.14.0-5_slurm        unstable   b:cuda/11.5.1 b:doxygen/1.9.2 b:knem/1.1.4 b:GDRCopy/2.2.0
+ucx/1.14.0_slurm          removed    b:cuda/12.1.1 b:doxygen/1.9.2 b:knem/1.1.4 b:GDRCopy/2.3.0
+ucx/1.14.1_slurm          unstable   b:cuda/12.1.1 b:doxygen/1.9.2 b:knem/1.1.4 b:GDRCopy/2.3.0 
 
 ucx/1.9.0_dgx             deprecated cuda/11.1.0 b:doxygen/1.8.14 b:knem/1.1.4
 ucx/1.10.0-1_dgx          deprecated cuda/11.2.2 b:doxygen/1.8.14 b:knem/1.1.4 b:GDRCopy/2.2.0