diff --git a/rust/bssl-crypto/deny.toml b/rust/bssl-crypto/deny.toml
index 20fc0c874..48cba429c 100644
--- a/rust/bssl-crypto/deny.toml
+++ b/rust/bssl-crypto/deny.toml
@@ -168,9 +168,6 @@ allow = [
     { name = "bssl-crypto", version = "=0.1.0" },
     # bssl-sys should be allowed, version appropriately.
     { name = "bssl-sys", version = "=0.1.0" },
-    # libc is used by bssl-sys from android, but is not really needed and should
-    # be removed once this can be checked with android.
-    { name = "libc", version = "=0.2.140" },
     # hex-literal was added for ease of tests, but should be removed.
     { name = "hex-literal", version = "=0.3.4" },
 ]
diff --git a/rust/bssl-sys/Cargo.toml b/rust/bssl-sys/Cargo.toml
index c5e61fd03..fe5f47f96 100644
--- a/rust/bssl-sys/Cargo.toml
+++ b/rust/bssl-sys/Cargo.toml
@@ -7,4 +7,3 @@ publish = false
 license = "MIT"
 
 [dependencies]
-libc = "0.2"