diff --git a/Cargo.lock b/Cargo.lock
index 657f430c..672229d8 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -107,7 +107,6 @@ version = "0.1.4"
 dependencies = [
  "log 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)",
  "memchr 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
- "memmap 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 0.1.80 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex-syntax 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
diff --git a/grep/Cargo.toml b/grep/Cargo.toml
index 7d266a0f..a5258837 100644
--- a/grep/Cargo.toml
+++ b/grep/Cargo.toml
@@ -15,6 +15,5 @@ license = "Unlicense/MIT"
 [dependencies]
 log = "0.3"
 memchr = "0.1"
-memmap = "0.5"
 regex = "0.1.77"
 regex-syntax = "0.3.5"