diff --git a/Cargo.lock b/Cargo.lock
index 690052afd..7bc7519fb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1741,11 +1741,11 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.17.2"
+version = "0.18.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b989d6a7ca95a362cf2cfc5ad688b3a467be1f87e480b8dad07fee8c79b0044"
+checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
 dependencies = [
- "bitflags 1.3.2",
+ "bitflags 2.4.0",
  "libc",
  "libgit2-sys",
  "log",
@@ -2050,9 +2050,9 @@ checksum = "13e3bf6590cbc649f4d1a3eefc9d5d6eb746f5200ffb04e5e142700b8faa56e7"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.15.2+1.6.4"
+version = "0.16.2+1.7.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a80df2e11fb4a61f4ba2ab42dbe7f74468da143f1a75c74e11dee7c813f694fa"
+checksum = "ee4126d8b4ee5c9d9ea891dd875cfdc1e9d0950437179104b183d7d8a74d24e8"
 dependencies = [
  "cc",
  "libc",
diff --git a/Cargo.toml b/Cargo.toml
index 3331ad0a0..257df111e 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -69,7 +69,7 @@ git-branchless-smartlog = { version = "0.8.0", path = "git-branchless-smartlog"
 git-branchless-submit = { version = "0.8.0", path = "git-branchless-submit" }
 git-branchless-test = { version = "0.8.0", path = "git-branchless-test" }
 git-branchless-undo = { version = "0.8.0", path = "git-branchless-undo" }
-git2 = { version = "0.17.2", default-features = false }
+git2 = { version = "0.18.3", default-features = false }
 glob = "0.3.0"
 indexmap = "2.2.6"
 indicatif = { version = "0.17.8", features = ["improved_unicode"] }