diff --git a/Cargo.lock b/Cargo.lock
index 5b8c87705..49a417890 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -136,9 +136,9 @@ checksum = "df8670b8c7b9dae1793364eafadf7239c40d669904660c5960d74cfd80b46a53"
 
 [[package]]
 name = "cc"
-version = "1.1.21"
+version = "1.1.23"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "07b1695e2c7e8fc85310cde85aeaab7e3097f593c91d209d3f9df76c928100f0"
+checksum = "3bbb537bb4a30b90362caddba8f360c0a56bc13d3a5570028e7197204cb54a17"
 dependencies = [
  "shlex",
 ]
@@ -1609,9 +1609,9 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.158"
+version = "0.2.159"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
+checksum = "561d97a539a36e26a9a5fad1ea11a3039a67714694aaa379433e580854bc3dc5"
 
 [[package]]
 name = "libloading"
@@ -1753,9 +1753,12 @@ dependencies = [
 
 [[package]]
 name = "once_cell"
-version = "1.19.0"
+version = "1.20.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
+checksum = "82881c4be219ab5faaf2ad5e5e5ecdff8c66bd7402ca3160975c93b24961afd1"
+dependencies = [
+ "portable-atomic",
+]
 
 [[package]]
 name = "open"
@@ -1914,9 +1917,9 @@ dependencies = [
 
 [[package]]
 name = "regex"
-version = "1.10.6"
+version = "1.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4219d74c6b67a3654a9fbebc4b419e22126d13d2f3c4a07ee0cb61ff79a79619"
+checksum = "38200e5ee88914975b69f657f0801b6f6dccafd44fd9326302a4aaeecfacb1d8"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1926,9 +1929,9 @@ dependencies = [
 
 [[package]]
 name = "regex-automata"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38caf58cc5ef2fed281f89292ef23f6365465ed9a41b7a7754eb4e26496c92df"
+checksum = "368758f23274712b504848e9d5a6f010445cc8b87a7cdb4d7cbee666c1288da3"
 dependencies = [
  "aho-corasick",
  "memchr",
@@ -1950,9 +1953,9 @@ dependencies = [
 
 [[package]]
 name = "regex-syntax"
-version = "0.8.4"
+version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7a66a03ae7c801facd77a29370b4faec201768915ac14a721ba36f20bc9c209b"
+checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
 [[package]]
 name = "ropey"
@@ -2192,9 +2195,9 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.12.0"
+version = "3.13.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04cbcdd0c794ebb0d4cf35e88edd2f7d2c4c3e9a5a6dab322839b321c6a87a64"
+checksum = "f0f2c9fc62d0beef6951ccffd757e241266a2c833136efbe35af6cd2567dca5b"
 dependencies = [
  "cfg-if",
  "fastrand",
diff --git a/helix-core/Cargo.toml b/helix-core/Cargo.toml
index bc890e007..4cd516268 100644
--- a/helix-core/Cargo.toml
+++ b/helix-core/Cargo.toml
@@ -32,7 +32,7 @@ unicode-width = "=0.1.12"
 unicode-general-category = "0.6"
 slotmap.workspace = true
 tree-sitter.workspace = true
-once_cell = "1.19"
+once_cell = "1.20"
 arc-swap = "1"
 regex = "1"
 bitflags = "2.6"
diff --git a/helix-event/Cargo.toml b/helix-event/Cargo.toml
index e7c877355..87e5019bd 100644
--- a/helix-event/Cargo.toml
+++ b/helix-event/Cargo.toml
@@ -19,7 +19,7 @@ tokio = { version = "1", features = ["rt", "rt-multi-thread", "time", "sync", "p
 # setup new events on initialization, hardware-lock-elision hugely benefits this case
 # as it essentially makes the lock entirely free as long as there is no writes 
 parking_lot = { version = "0.12", features = ["hardware-lock-elision"] }
-once_cell = "1.18"
+once_cell = "1.20"
 
 anyhow = "1"
 log = "0.4"
diff --git a/helix-loader/Cargo.toml b/helix-loader/Cargo.toml
index f74829f30..26ab3f264 100644
--- a/helix-loader/Cargo.toml
+++ b/helix-loader/Cargo.toml
@@ -22,7 +22,7 @@ serde = { version = "1.0", features = ["derive"] }
 toml = "0.8"
 etcetera = "0.8"
 tree-sitter.workspace = true
-once_cell = "1.19"
+once_cell = "1.20"
 log = "0.4"
 
 # TODO: these two should be on !wasm32 only
@@ -30,7 +30,7 @@ log = "0.4"
 # cloning/compiling tree-sitter grammars
 cc = { version = "1" }
 threadpool = { version = "1.0" }
-tempfile = "3.12.0"
+tempfile = "3.13.0"
 dunce = "1.0.5"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dependencies]
diff --git a/helix-stdx/Cargo.toml b/helix-stdx/Cargo.toml
index 1c0d06ab1..25c0a164d 100644
--- a/helix-stdx/Cargo.toml
+++ b/helix-stdx/Cargo.toml
@@ -26,4 +26,4 @@ windows-sys = { version = "0.59", features = ["Win32_Foundation", "Win32_Securit
 rustix = { version = "0.38", features = ["fs"] }
 
 [dev-dependencies]
-tempfile = "3.12"
+tempfile = "3.13"
diff --git a/helix-term/Cargo.toml b/helix-term/Cargo.toml
index c66aa0621..b14d3d3c5 100644
--- a/helix-term/Cargo.toml
+++ b/helix-term/Cargo.toml
@@ -33,7 +33,7 @@ helix-vcs = { path = "../helix-vcs" }
 helix-loader = { path = "../helix-loader" }
 
 anyhow = "1"
-once_cell = "1.19"
+once_cell = "1.20"
 
 tokio = { version = "1", features = ["rt", "rt-multi-thread", "io-util", "io-std", "time", "process", "macros", "fs", "parking_lot"] }
 tui = { path = "../helix-tui", package = "helix-tui", default-features = false, features = ["crossterm"] }
@@ -74,7 +74,7 @@ grep-searcher = "0.1.14"
 
 [target.'cfg(not(windows))'.dependencies]  # https://github.com/vorner/signal-hook/issues/100
 signal-hook-tokio = { version = "0.3", features = ["futures-v0_3"] }
-libc = "0.2.158"
+libc = "0.2.159"
 
 [target.'cfg(target_os = "macos")'.dependencies]
 crossterm = { version = "0.28", features = ["event-stream", "use-dev-tty", "libc"] }
@@ -85,5 +85,5 @@ helix-loader = { path = "../helix-loader" }
 [dev-dependencies]
 smallvec = "1.13"
 indoc = "2.0.5"
-tempfile = "3.12.0"
+tempfile = "3.13.0"
 same-file = "1.0.1"
diff --git a/helix-tui/Cargo.toml b/helix-tui/Cargo.toml
index a349623b1..96f008a01 100644
--- a/helix-tui/Cargo.toml
+++ b/helix-tui/Cargo.toml
@@ -24,5 +24,5 @@ unicode-segmentation = "1.12"
 crossterm = { version = "0.28", optional = true }
 termini = "1.0"
 serde = { version = "1", "optional" = true, features = ["derive"]}
-once_cell = "1.19"
+once_cell = "1.20"
 log = "~0.4"
diff --git a/helix-vcs/Cargo.toml b/helix-vcs/Cargo.toml
index 245fdb8dc..43d5d619b 100644
--- a/helix-vcs/Cargo.toml
+++ b/helix-vcs/Cargo.toml
@@ -29,4 +29,4 @@ log = "0.4"
 git = ["gix"]
 
 [dev-dependencies]
-tempfile = "3.12"
+tempfile = "3.13"
diff --git a/helix-view/Cargo.toml b/helix-view/Cargo.toml
index ddfa9f7e4..725a77547 100644
--- a/helix-view/Cargo.toml
+++ b/helix-view/Cargo.toml
@@ -28,10 +28,10 @@ bitflags = "2.6"
 anyhow = "1"
 crossterm = { version = "0.28", optional = true }
 
-tempfile = "3.12"
+tempfile = "3.13"
 
 # Conversion traits
-once_cell = "1.19"
+once_cell = "1.20"
 url = "2.5.2"
 
 arc-swap = { version = "1.7.1" }