diff --git a/Cargo.lock b/Cargo.lock
index 191ad8923..a24abb936 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1608,9 +1608,9 @@ dependencies = [
 
 [[package]]
 name = "retain_mut"
-version = "0.1.2"
+version = "0.1.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "53552c6c49e1e13f1a203ef0080ab3bbef0beb570a528993e83df057a9d9bba1"
+checksum = "8c31b5c4033f8fdde8700e4657be2c497e7288f01515be52168c631e2e4d4086"
 
 [[package]]
 name = "rlimit"
diff --git a/src/uu/tee/Cargo.toml b/src/uu/tee/Cargo.toml
index d018ee4a7..7257d9854 100644
--- a/src/uu/tee/Cargo.toml
+++ b/src/uu/tee/Cargo.toml
@@ -17,7 +17,7 @@ path = "src/tee.rs"
 [dependencies]
 clap = { version = "3.1", features = ["wrap_help", "cargo"] }
 libc = "0.2.124"
-retain_mut = "=0.1.2" # ToDO: [2021-01-01; rivy; maint/MinSRV] ~ v0.1.5 uses const generics which aren't stabilized until rust v1.51.0
+retain_mut = "=0.1.7" # ToDO: [2021-01-01; rivy; maint/MinSRV] ~ v0.1.5 uses const generics which aren't stabilized until rust v1.51.0
 uucore = { version=">=0.0.11", package="uucore", path="../../uucore", features=["libc"] }
 
 [[bin]]