diff --git a/mmtk/Cargo.lock b/mmtk/Cargo.lock
index 1bb5d705..bb261ae7 100644
--- a/mmtk/Cargo.lock
+++ b/mmtk/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "aho-corasick"
-version = "1.0.2"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "43f6cb1bf222025340178f382c426f13757b2960e89779dfcb319c32542a5a41"
+checksum = "0c378d78423fdad8089616f827526ee33c19f2fddbd5de1629152c9593ba4783"
 dependencies = [
  "memchr",
 ]
@@ -29,9 +29,9 @@ dependencies = [
 
 [[package]]
 name = "atomic_refcell"
-version = "0.1.10"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "79d6dc922a2792b006573f60b2648076355daeae5ce9cb59507e5908c9625d31"
+checksum = "112ef6b3f6cb3cb6fc5b6b494ef7a848492cff1ab0ef4de10b0f7d572861c905"
 
 [[package]]
 name = "autocfg"
@@ -45,6 +45,12 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
+[[package]]
+name = "bitflags"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
+
 [[package]]
 name = "built"
 version = "0.6.0"
@@ -69,9 +75,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.82"
+version = "1.0.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "305fe645edc1442a0fa8b6726ba61d422798d37a52e12eaecf4b022ebbb88f01"
+checksum = "f1174fb0b6ec23863f8b971027804a42614e347eafb0a95bf0b12cdae21fc4d0"
 dependencies = [
  "jobserver",
  "libc",
@@ -196,7 +202,7 @@ checksum = "ccb14d927583dd5c2eac0f2cf264fc4762aefe1ae14c47a8a20fc1939d3a5fc0"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.31",
 ]
 
 [[package]]
@@ -214,9 +220,9 @@ dependencies = [
 
 [[package]]
 name = "errno"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b30f669a7961ef1631673d2766cc92f52d64f7ef354d4fe0ddfd30ed52f0f4f"
+checksum = "136526188508e25c6fef639d7927dfb3e0e3084488bf202267829cf7fc23dbdd"
 dependencies = [
  "errno-dragonfly",
  "libc",
@@ -248,7 +254,7 @@ version = "0.16.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ccf7f68c2995f392c49fffb4f95ae2c873297830eb25c6bc4c114ce8f4562acc"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
  "libgit2-sys",
  "log",
@@ -283,25 +289,13 @@ dependencies = [
  "unicode-normalization",
 ]
 
-[[package]]
-name = "io-lifetimes"
-version = "1.0.11"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "eae7b9aee968036d54dce06cebaefd919e4472e753296daccd6d344e3e2df0c2"
-dependencies = [
- "hermit-abi",
- "libc",
- "windows-sys",
-]
-
 [[package]]
 name = "is-terminal"
-version = "0.4.7"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "adcf93614601c8129ddf72e2d5633df827ba6551541c6d8c59520a371475be1f"
+checksum = "cb0889898416213fab133e1d33a0e5858a48177452750691bde3666d0fdbaf8b"
 dependencies = [
  "hermit-abi",
- "io-lifetimes",
  "rustix",
  "windows-sys",
 ]
@@ -362,9 +356,9 @@ dependencies = [
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.3.8"
+version = "0.4.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ef53942eb7bf7ff43a617b3e2c1c4a5ecf5944a7c1bc12d7ee39bbb15e5c1519"
+checksum = "57bcfdad1b858c2db7c38303a6d2ad4dfaf5eb53dfeb0910128b2c26d6158503"
 
 [[package]]
 name = "lock_api"
@@ -378,15 +372,15 @@ dependencies = [
 
 [[package]]
 name = "log"
-version = "0.4.19"
+version = "0.4.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b06a4cde4c0f271a446782e3eff8de789548ce57dbc8eca9292c27f4a42004b4"
+checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
 
 [[package]]
 name = "memchr"
-version = "2.5.0"
+version = "2.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+checksum = "8f232d6ef707e1956a43342693d2a31e72989554d58299d7a88738cc95b0d35c"
 
 [[package]]
 name = "memoffset"
@@ -400,7 +394,7 @@ dependencies = [
 [[package]]
 name = "mmtk"
 version = "0.19.0"
-source = "git+https://github.com/mmtk/mmtk-core.git?rev=269408b464d723b7f9f2d203e7b3ae220eb8edd9#269408b464d723b7f9f2d203e7b3ae220eb8edd9"
+source = "git+https://github.com/udesou/mmtk-core.git?rev=a26101f4266b70a8249b59089523e12512a068df#a26101f4266b70a8249b59089523e12512a068df"
 dependencies = [
  "atomic",
  "atomic-traits",
@@ -421,6 +415,7 @@ dependencies = [
  "mmtk-macros",
  "num-traits",
  "num_cpus",
+ "portable-atomic",
  "probe",
  "regex",
  "spin",
@@ -433,12 +428,12 @@ dependencies = [
 [[package]]
 name = "mmtk-macros"
 version = "0.19.0"
-source = "git+https://github.com/mmtk/mmtk-core.git?rev=269408b464d723b7f9f2d203e7b3ae220eb8edd9#269408b464d723b7f9f2d203e7b3ae220eb8edd9"
+source = "git+https://github.com/udesou/mmtk-core.git?rev=a26101f4266b70a8249b59089523e12512a068df#a26101f4266b70a8249b59089523e12512a068df"
 dependencies = [
  "proc-macro-error",
  "proc-macro2",
  "quote",
- "syn 1.0.109",
+ "syn 2.0.31",
 ]
 
 [[package]]
@@ -493,10 +488,11 @@ checksum = "9b2a4787296e9989611394c33f193f676704af1686e70b8f8033ab5ba9a35a94"
 
 [[package]]
 name = "pest"
-version = "2.7.2"
+version = "2.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1acb4a4365a13f749a93f1a094a7805e5cfa0955373a9de860d962eaa3a5fe5a"
+checksum = "d7a4d085fd991ac8d5b05a147b437791b4260b76326baf0fc60cf7c9c27ecd33"
 dependencies = [
+ "memchr",
  "thiserror",
  "ucd-trie",
 ]
@@ -507,6 +503,12 @@ version = "0.3.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
 
+[[package]]
+name = "portable-atomic"
+version = "1.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "31114a898e107c51bb1609ffaf55a0e011cf6a4d7f1170d0015a165082c0338b"
+
 [[package]]
 name = "probe"
 version = "0.5.1"
@@ -548,9 +550,9 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.32"
+version = "1.0.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50f3b39ccfb720540debaa0164757101c08ecb8d326b15358ce76a62c7e85965"
+checksum = "5267fca4496028628a95160fc423a33e8b2e6af8a5302579e322e4b520293cae"
 dependencies = [
  "proc-macro2",
 ]
@@ -579,9 +581,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.9.3"
+version = "1.9.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "81bc1d4caf89fac26a70747fe603c130093b53c773888797a6329091246d651a"
+checksum = "697061221ea1b4a94a624f67d0ae2bfe4e22b8a17b6a192afb11046542cc8c47"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -591,9 +593,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.3.6"
+version = "0.3.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fed1ceff11a1dddaee50c9dc8e4938bd106e9d89ae372f192311e7da498e3b69"
+checksum = "c2f401f4955220693b56f8ec66ee9c78abffd8d1c4f23dc41a23839eb88f0795"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -602,9 +604,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.7.4"
+version = "0.7.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5ea92a5b6195c6ef2a0295ea818b312502c6fc94dde986c5553242e18fd4ce2"
+checksum = "dbb5fb1acd8a1a18b3dd5be62d25485eb770e05afb408a9627d14d451bae12da"
 
 [[package]]
 name = "rustc_version"
@@ -617,13 +619,12 @@ dependencies = [
 
 [[package]]
 name = "rustix"
-version = "0.37.23"
+version = "0.38.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4d69718bf81c6127a49dc64e44a742e8bb9213c0ff8869a22c308f84c1d4ab06"
+checksum = "c0c3dde1fc030af041adc40e79c0e7fbcf431dd24870053d187d7c66e4b87453"
 dependencies = [
- "bitflags",
+ "bitflags 2.4.0",
  "errno",
- "io-lifetimes",
  "libc",
  "linux-raw-sys",
  "windows-sys",
@@ -670,22 +671,22 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.183"
+version = "1.0.188"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "32ac8da02677876d532745a130fc9d8e6edfa81a269b107c5b00829b91d8eb3c"
+checksum = "cf9e0fcba69a370eed61bcf2b728575f726b50b55cba78064753d708ddc7549e"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.183"
+version = "1.0.188"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aafe972d60b0b9bee71a91b92fee2d4fb3c9d7e8f6b179aa99f27203d99a4816"
+checksum = "4eca7ac642d82aa35b60049a6eccb4be6be75e599bd2e9adb5f875a737654af2"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.31",
 ]
 
 [[package]]
@@ -735,9 +736,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "2.0.28"
+version = "2.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04361975b3f5e348b2189d8dc55bc942f278b2d482a6a0365de5bdd62d351567"
+checksum = "718fa2415bcb8d8bd775917a1bf12a7931b6dfa890753378538118181e0cb398"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -746,9 +747,9 @@ dependencies = [
 
 [[package]]
 name = "sysinfo"
-version = "0.29.5"
+version = "0.29.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6b949f01f9c23823744b71e0060472ecbde578ef68cc2a9e46d114efd77c3034"
+checksum = "a8d0e9cc2273cc8d31377bdd638d72e3ac3e5607b18621062b169d02787f1bab"
 dependencies = [
  "cfg-if",
  "core-foundation-sys",
@@ -770,22 +771,22 @@ dependencies = [
 
 [[package]]
 name = "thiserror"
-version = "1.0.44"
+version = "1.0.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "611040a08a0439f8248d1990b111c95baa9c704c805fa1f62104b39655fd7f90"
+checksum = "9d6d7a740b8a666a7e828dd00da9c0dc290dff53154ea77ac109281de90589b7"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.44"
+version = "1.0.48"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "090198534930841fab3a5d1bb637cde49e339654e606195f8d9c76eeb081dc96"
+checksum = "49922ecae66cc8a249b77e68d1d0623c1b2c514f0060c27cdc68bd62a1219d35"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.28",
+ "syn 2.0.31",
 ]
 
 [[package]]
@@ -841,9 +842,9 @@ dependencies = [
 
 [[package]]
 name = "url"
-version = "2.4.0"
+version = "2.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50bff7831e19200a85b17131d085c25d7811bc4e186efdaf54bbd132994a88cb"
+checksum = "143b538f18257fac9cad154828a57c6bf5157e1aa604d4816b5995bf6de87ae5"
 dependencies = [
  "form_urlencoded",
  "idna",
@@ -904,9 +905,9 @@ dependencies = [
 
 [[package]]
 name = "windows-targets"
-version = "0.48.1"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "05d4b17490f70499f20b9e791dcf6a299785ce8af4d709018206dc5b4953e95f"
+checksum = "9a2fa6e2155d7247be68c096456083145c183cbbbc2764150dda45a87197940c"
 dependencies = [
  "windows_aarch64_gnullvm",
  "windows_aarch64_msvc",
@@ -919,42 +920,42 @@ dependencies = [
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.48.0"
+version = "0.48.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
diff --git a/mmtk/Cargo.toml b/mmtk/Cargo.toml
index 6c85ebbc..a85610c3 100644
--- a/mmtk/Cargo.toml
+++ b/mmtk/Cargo.toml
@@ -2,7 +2,7 @@
 name = "mmtk_jikesrvm"
 version = "0.19.0"
 authors = [" <>"]
-rust-version = "1.66.0"
+rust-version = "1.70.0"
 
 [lib]
 name = "mmtk_jikesrvm"
@@ -28,7 +28,7 @@ log = {version = "0.4", features = ["max_level_trace", "release_max_level_off"]
 # - change branch/rev
 # - change repo name
 # But other changes including adding/removing whitespaces in commented lines may break the CI.
-mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev = "269408b464d723b7f9f2d203e7b3ae220eb8edd9" }
+mmtk = { git = "https://github.com/mmtk/mmtk-core.git", rev = "61d20e2dcd5b4743ef04a8118eb807bcd6f6e2e2" }
 # Uncomment the following to build locally - if you change the path locally, do not commit the change in a PR
 # mmtk = { path = "../repos/mmtk-core" }