diff --git a/bindings/rust/extended/s2n-tls-sys/templates/Cargo.template b/bindings/rust/extended/s2n-tls-sys/templates/Cargo.template
index c222ffda1c9..9b2eaa9f384 100644
--- a/bindings/rust/extended/s2n-tls-sys/templates/Cargo.template
+++ b/bindings/rust/extended/s2n-tls-sys/templates/Cargo.template
@@ -36,12 +36,13 @@ stacktrace = []
 # unstable-foo = []
 
 [dependencies]
-# aws-lc-rs 1.6.4 adds DEP_AWS_LC environment variables which are required to build s2n-tls-sys:
+# aws-lc-rs 1.12.0 specifies a minimum version for aws-lc-sys and aws-lc-fips-sys that include
+# DEP_AWS_LC environment variables, which are required to build s2n-tls-sys:
 # https://github.com/aws/aws-lc-rs/pull/335
-aws-lc-rs = { version = "1.6.4" }
-# aws-lc-rs 1.6.4 depends on aws-lc-sys 0.14.0, which requires libc 0.2.121:
-# https://github.com/aws/aws-lc-rs/blob/2298ca861234d4f43aecef2c7d7e822c60bc488a/aws-lc-sys/Cargo.toml#L65
-libc = "0.2.121"
+aws-lc-rs = { version = "1.12.0" }
+# cc 1.0.100 depends on jobserver 0.1.30, which requires libc 0.2.87:
+# https://github.com/rust-lang/jobserver-rs/blob/4ac8212169e06f427ccd4da985cf023a483fc6a6/Cargo.toml#L16
+libc = "0.2.87"
 
 [build-dependencies]
 cc = { version = "1.0.100", features = ["parallel"] }
diff --git a/bindings/rust/extended/s2n-tls-tokio/Cargo.toml b/bindings/rust/extended/s2n-tls-tokio/Cargo.toml
index 28f191e6217..cdb9b7c941c 100644
--- a/bindings/rust/extended/s2n-tls-tokio/Cargo.toml
+++ b/bindings/rust/extended/s2n-tls-tokio/Cargo.toml
@@ -13,8 +13,8 @@ default = []
 
 [dependencies]
 errno = { version = "0.3" }
-# A minimum libc version of 0.2.121 is required by aws-lc-sys 0.14.0.
-libc = { version = "0.2.121" }
+# A minimum libc version of 0.2.87 is required by jobserver 0.1.30.
+libc = { version = "0.2.87" }
 pin-project-lite = { version = "0.2" }
 s2n-tls = { version = "=0.3.9", path = "../s2n-tls" }
 tokio = { version = "1", features = ["net", "time"] }
diff --git a/bindings/rust/extended/s2n-tls/Cargo.toml b/bindings/rust/extended/s2n-tls/Cargo.toml
index f3219e5d665..c4181d1e182 100644
--- a/bindings/rust/extended/s2n-tls/Cargo.toml
+++ b/bindings/rust/extended/s2n-tls/Cargo.toml
@@ -20,8 +20,8 @@ unstable-testing = []
 
 [dependencies]
 errno = { version = "0.3" }
-# A minimum libc version of 0.2.121 is required by aws-lc-sys 0.14.0.
-libc = "0.2.121"
+# A minimum libc version of 0.2.87 is required by jobserver 0.1.30.
+libc = { version = "0.2.87" }
 s2n-tls-sys = { version = "=0.3.9", path = "../s2n-tls-sys", features = ["internal"] }
 pin-project-lite = "0.2"
 hex = "0.4"