diff --git a/Cargo.lock b/Cargo.lock
index 238c21f52a..aab9e1694c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4,9 +4,9 @@ version = 3
 
 [[package]]
 name = "addr2line"
-version = "0.15.1"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03345e98af8f3d786b6d9f656ccfa6ac316d954e92bc4841f0bba20789d5fb5a"
+checksum = "e7a2e47a1fbe209ee101dd6d61285226744c6c8d3c21c8dc878ba6cb9f467f3a"
 dependencies = [
  "gimli",
 ]
@@ -72,9 +72,9 @@ checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
 
 [[package]]
 name = "backtrace"
-version = "0.3.59"
+version = "0.3.60"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4717cfcbfaa661a0fd48f8453951837ae7e8f81e481fbb136e3202d72805a744"
+checksum = "b7815ea54e4d821e791162e078acbebfd6d8c8939cd559c9335dceb1c8ca7282"
 dependencies = [
  "addr2line",
  "cc",
@@ -106,12 +106,6 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 
-[[package]]
-name = "byteorder"
-version = "1.4.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
-
 [[package]]
 name = "camino"
 version = "1.0.4"
@@ -439,9 +433,9 @@ checksum = "d7afe4a420e3fe79967a00898cc1f4db7c8a49a9333a29f8a4bd76a253d5cd04"
 
 [[package]]
 name = "heck"
-version = "0.3.2"
+version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "87cbf45460356b7deeb5e3415b5563308c0a9b057c85e12b06ad551f98d0a6ac"
+checksum = "6d621efb26863f0e9924c6ac577e8275e5e6b77455db64ffa6c65c904e9e132c"
 dependencies = [
  "unicode-segmentation",
 ]
@@ -877,9 +871,9 @@ checksum = "b16bd47d9e329435e309c58469fe0791c2d0d1ba96ec0954152a5ae2b04387dc"
 
 [[package]]
 name = "memmap2"
-version = "0.2.3"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "723e3ebdcdc5c023db1df315364573789f8857c11b631a2fdfad7c00f5c046b4"
+checksum = "20ff203f7bdc401350b1dbaa0355135777d25f41c0bbc601851bbd6cf61e8ff5"
 dependencies = [
  "libc",
 ]
@@ -914,9 +908,9 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "0.7.11"
+version = "0.7.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf80d3e903b34e0bd7282b218398aec54e082c840d9baf8339e0080a0c542956"
+checksum = "8c2bdb6314ec10835cd3293dd268473a835c02b7b352e788be788b3c6ca6bb16"
 dependencies = [
  "libc",
  "log",
@@ -936,9 +930,9 @@ dependencies = [
 
 [[package]]
 name = "notify"
-version = "5.0.0-pre.9"
+version = "5.0.0-pre.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b89869d77edd64db917d7903abeadc166f93686b342c56cc0ca51acb68441d09"
+checksum = "51f18203a26893ca1d3526cf58084025d5639f91c44f8b70ab3b724f60e819a0"
 dependencies = [
  "bitflags",
  "crossbeam-channel",
@@ -972,9 +966,12 @@ dependencies = [
 
 [[package]]
 name = "object"
-version = "0.24.0"
+version = "0.25.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1a5b3dd1c072ee7963717671d1ca129f1048fda25edea6b752bfc71ac8854170"
+checksum = "a38f2be3697a57b4060074ff41b44c16870d916ad7877c17696e063257482bc7"
+dependencies = [
+ "memchr",
+]
 
 [[package]]
 name = "once_cell"
@@ -1247,9 +1244,9 @@ dependencies = [
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.8"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "742739e41cd49414de871ea5e549afb7e2a3ac77b589bcbebe8c82fab37147fc"
+checksum = "5ab49abadf3f9e1c4bc499e8845e152ad87d2ad2d30371841171169e9d75feee"
 dependencies = [
  "bitflags",
 ]
@@ -1265,11 +1262,10 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.1.9"
+version = "0.1.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae1ded71d66a4a97f5e961fd0cb25a5f366a42a41570d16a763a69c092c26ae4"
+checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
 dependencies = [
- "byteorder",
  "regex-syntax",
 ]
 
@@ -1355,9 +1351,9 @@ dependencies = [
 
 [[package]]
 name = "rustc-demangle"
-version = "0.1.19"
+version = "0.1.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "410f7acf3cb3a44527c5d9546bad4bf4e6c460915d5f9f2fc524498bfe8f70ce"
+checksum = "dead70b0b5e03e9c814bcb6b01e03e68f7c57a80aa48c72ec92152ab3e818d49"
 
 [[package]]
 name = "rustc-hash"
@@ -1535,9 +1531,9 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.72"
+version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1e8cdbefb79a9a5a65e0db8b47b723ee907b7c7f8496c76a1770b5c310bab82"
+checksum = "f71489ff30030d2ae598524f61326b902466f72a0fb1a8564c001cc63425bcc7"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1773,9 +1769,9 @@ checksum = "56dee185309b50d1f11bfedef0fe6d036842e3fb77413abef29f8f8d1c5d4c1c"
 
 [[package]]
 name = "ungrammar"
-version = "1.14.0"
+version = "1.14.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "50ef6d7335c77ec3e4a7c4be74c2b9e4642569e94a4004c836f8cca71fede3a7"
+checksum = "3dbe67c0c0f5ded8e404578a9ab1009ffdb6ee219779329aefc0cb4fe7f44891"
 
 [[package]]
 name = "unicase"
@@ -1797,9 +1793,9 @@ dependencies = [
 
 [[package]]
 name = "unicode-normalization"
-version = "0.1.18"
+version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33717dca7ac877f497014e10d73f3acf948c342bee31b5ca7892faf94ccc6b49"
+checksum = "d54590932941a9e9266f0832deed84ebe1bf2e4c9e4a3554d393d18f5e854bf9"
 dependencies = [
  "tinyvec",
 ]
diff --git a/crates/proc_macro_api/Cargo.toml b/crates/proc_macro_api/Cargo.toml
index 2c4da394be..1c3a902014 100644
--- a/crates/proc_macro_api/Cargo.toml
+++ b/crates/proc_macro_api/Cargo.toml
@@ -15,8 +15,8 @@ serde_json = { version = "1.0", features = ["unbounded_depth"] }
 log = "0.4.8"
 crossbeam-channel = "0.5.0"
 jod-thread = "0.1.1"
-memmap2 = "0.2.0"
-object = { version = "0.24", default-features = false, features = ["std", "read_core", "elf", "macho", "pe"] }
+memmap2 = "0.3.0"
+object = { version = "0.25.3", default-features = false, features = ["std", "read_core", "elf", "macho", "pe"] }
 snap = "1.0"
 
 tt = { path = "../tt", version = "0.0.0" }
diff --git a/crates/proc_macro_srv/Cargo.toml b/crates/proc_macro_srv/Cargo.toml
index c15cb88214..5b879fab73 100644
--- a/crates/proc_macro_srv/Cargo.toml
+++ b/crates/proc_macro_srv/Cargo.toml
@@ -10,9 +10,9 @@ edition = "2018"
 doctest = false
 
 [dependencies]
-object = { version = "0.24", default-features = false, features = ["std", "read_core", "elf", "macho", "pe"] }
+object = { version = "0.25.3", default-features = false, features = ["std", "read_core", "elf", "macho", "pe"] }
 libloading = "0.7.0"
-memmap2 = "0.2.0"
+memmap2 = "0.3.0"
 
 tt = { path = "../tt", version = "0.0.0" }
 mbe = { path = "../mbe", version = "0.0.0" }