diff --git a/Cargo.lock b/Cargo.lock
index ee318ab6..1a9c5115 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -187,6 +187,12 @@ 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 = "bstr"
 version = "1.6.0"
@@ -560,11 +566,11 @@ dependencies = [
 
 [[package]]
 name = "git2"
-version = "0.16.1"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ccf7f68c2995f392c49fffb4f95ae2c873297830eb25c6bc4c114ce8f4562acc"
+checksum = "12ef350ba88a33b4d524b1d1c79096c9ade5ef8c59395df0e60d1e1889414c0e"
 dependencies = [
- "bitflags",
+ "bitflags 2.4.0",
  "libc",
  "libgit2-sys",
  "log",
@@ -689,9 +695,9 @@ checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
 
 [[package]]
 name = "libgit2-sys"
-version = "0.14.2+1.5.1"
+version = "0.16.1+1.7.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7f3d95f6b51075fe9810a7ae22c7095f12b98005ab364d8544797a825ce946a4"
+checksum = "f2a2bb3680b094add03bb3732ec520ece34da31a8cd2d633d1389d0f0fb60d0c"
 dependencies = [
  "cc",
  "libc",
@@ -772,7 +778,7 @@ version = "0.26.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bfdda3d196821d6af13126e40375cdf7da646a96114af134d5f417a9a1dc8e1a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "cfg-if",
  "libc",
  "static_assertions",
@@ -823,7 +829,7 @@ version = "6.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c4b31c8722ad9171c6d77d3557db078cab2bd50afcc9d09c8b315c59df8ca4f"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "libc",
  "once_cell",
  "onig_sys",
@@ -967,7 +973,7 @@ version = "0.2.16"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -976,7 +982,7 @@ version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
 ]
 
 [[package]]
@@ -1034,7 +1040,7 @@ version = "0.37.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "62b24138615de35e32031d041a09032ef3487a616d901ca4db224e7d557efae2"
 dependencies = [
- "bitflags",
+ "bitflags 1.3.2",
  "errno",
  "io-lifetimes",
  "libc",
@@ -1206,7 +1212,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c6c454c27d9d7d9a84c7803aaa3c50cd088d2906fe3c6e42da3209aa623576a8"
 dependencies = [
  "bincode",
- "bitflags",
+ "bitflags 1.3.2",
  "fancy-regex",
  "flate2",
  "fnv",
diff --git a/Cargo.toml b/Cargo.toml
index bf3060a5..9536ec4c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -66,7 +66,7 @@ walkdir = { version = "2.3", optional = true }
 bytesize = { version = "1.2.0" }
 
 [dependencies.git2]
-version = "0.16"
+version = "0.18"
 optional = true
 default-features = false