diff --git a/config/6.1/microvm-kernel-aarch64-6.1.config b/config/6.1/microvm-kernel-aarch64-6.1.config
index 9f892cf..6247f66 100644
--- a/config/6.1/microvm-kernel-aarch64-6.1.config
+++ b/config/6.1/microvm-kernel-aarch64-6.1.config
@@ -818,6 +818,8 @@ CONFIG_COREDUMP=y
 #
 CONFIG_SWAP=y
 # CONFIG_ZSWAP is not set
+CONFIG_ZSMALLOC=y
+# CONFIG_ZSMALLOC_STAT is not set
 
 #
 # SLAB allocator options
@@ -1505,14 +1507,18 @@ CONFIG_OF_NUMA=y
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_NULL_BLK is not set
-# CONFIG_ZRAM is not set
+CONFIG_ZRAM=y
+# CONFIG_ZRAM_DEF_COMP_LZORLE is not set
+CONFIG_ZRAM_DEF_COMP_ZSTD=y
+# CONFIG_ZRAM_DEF_COMP_LZO is not set
+CONFIG_ZRAM_DEF_COMP="zstd"
+# CONFIG_ZRAM_WRITEBACK is not set
+# CONFIG_ZRAM_MEMORY_TRACKING is not set
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
 # CONFIG_BLK_DEV_DRBD is not set
 # CONFIG_BLK_DEV_NBD is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_RAM is not set
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 CONFIG_VIRTIO_BLK=y
@@ -2814,7 +2820,7 @@ CONFIG_CRYPTO_LZO=y
 # CONFIG_CRYPTO_842 is not set
 # CONFIG_CRYPTO_LZ4 is not set
 # CONFIG_CRYPTO_LZ4HC is not set
-# CONFIG_CRYPTO_ZSTD is not set
+CONFIG_CRYPTO_ZSTD=y
 # end of Compression
 
 #
@@ -2949,6 +2955,7 @@ CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
 CONFIG_LZ4_DECOMPRESS=y
 CONFIG_ZSTD_COMMON=y
+CONFIG_ZSTD_COMPRESS=y
 CONFIG_ZSTD_DECOMPRESS=y
 CONFIG_XZ_DEC=y
 CONFIG_XZ_DEC_X86=y
diff --git a/config/6.1/microvm-kernel-x86_64-6.1.config b/config/6.1/microvm-kernel-x86_64-6.1.config
index 92e3473..d578d6f 100644
--- a/config/6.1/microvm-kernel-x86_64-6.1.config
+++ b/config/6.1/microvm-kernel-x86_64-6.1.config
@@ -874,6 +874,8 @@ CONFIG_COREDUMP=y
 #
 CONFIG_SWAP=y
 # CONFIG_ZSWAP is not set
+CONFIG_ZSMALLOC=y
+# CONFIG_ZSMALLOC_STAT is not set
 
 #
 # SLAB allocator options
@@ -1541,14 +1543,18 @@ CONFIG_PNPACPI=y
 CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_NULL_BLK is not set
 # CONFIG_BLK_DEV_FD is not set
-# CONFIG_ZRAM is not set
+CONFIG_ZRAM=y
+# CONFIG_ZRAM_DEF_COMP_LZORLE is not set
+CONFIG_ZRAM_DEF_COMP_ZSTD=y
+# CONFIG_ZRAM_DEF_COMP_LZO is not set
+CONFIG_ZRAM_DEF_COMP="zstd"
+# CONFIG_ZRAM_WRITEBACK is not set
+# CONFIG_ZRAM_MEMORY_TRACKING is not set
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
 # CONFIG_BLK_DEV_DRBD is not set
 # CONFIG_BLK_DEV_NBD is not set
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_COUNT=16
-CONFIG_BLK_DEV_RAM_SIZE=4096
+# CONFIG_BLK_DEV_RAM is not set
 # CONFIG_CDROM_PKTCDVD is not set
 # CONFIG_ATA_OVER_ETH is not set
 CONFIG_VIRTIO_BLK=y
@@ -2768,7 +2774,7 @@ CONFIG_CRYPTO_LZO=y
 # CONFIG_CRYPTO_842 is not set
 # CONFIG_CRYPTO_LZ4 is not set
 # CONFIG_CRYPTO_LZ4HC is not set
-# CONFIG_CRYPTO_ZSTD is not set
+CONFIG_CRYPTO_ZSTD=y
 # end of Compression
 
 #
@@ -2915,6 +2921,7 @@ CONFIG_LZO_COMPRESS=y
 CONFIG_LZO_DECOMPRESS=y
 CONFIG_LZ4_DECOMPRESS=y
 CONFIG_ZSTD_COMMON=y
+CONFIG_ZSTD_COMPRESS=y
 CONFIG_ZSTD_DECOMPRESS=y
 CONFIG_XZ_DEC=y
 CONFIG_XZ_DEC_X86=y