diff --git a/Cargo.lock b/Cargo.lock
index 1b831a63..7736682a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -161,6 +161,7 @@ dependencies = [
  "criterion",
  "env_logger",
  "ffi-support",
+ "home",
  "jemallocator",
  "log",
  "once_cell",
@@ -168,6 +169,8 @@ dependencies = [
  "serde",
  "serde_cbor",
  "serde_json",
+ "tokio",
+ "tokio-stream",
  "zeroize",
 ]
 
@@ -1298,11 +1301,11 @@ dependencies = [
 
 [[package]]
 name = "home"
-version = "0.5.9"
+version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e3d1354bf6b7235cb4a0576c2619fd4ed18183f689b12b006a0ee7329eeff9a5"
+checksum = "5444c27eef6923071f7ebcc33e3444508466a76f7a2b93da00ed6e19f30c1ddb"
 dependencies = [
- "windows-sys 0.52.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1571,14 +1574,13 @@ dependencies = [
 
 [[package]]
 name = "mio"
-version = "1.0.2"
+version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "80e04d1dcff3aae0704555fe5fee3bcfaf3d1fdf8a7e521d5b9d2b42acb52cec"
+checksum = "a4a650543ca06a924e8b371db273b2756685faae30f8487da1b56505a8f78b0c"
 dependencies = [
- "hermit-abi 0.3.9",
  "libc",
  "wasi",
- "windows-sys 0.52.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
@@ -1669,6 +1671,16 @@ dependencies = [
  "libm",
 ]
 
+[[package]]
+name = "num_cpus"
+version = "1.16.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
+dependencies = [
+ "hermit-abi 0.3.9",
+ "libc",
+]
+
 [[package]]
 name = "object"
 version = "0.36.4"
@@ -2727,24 +2739,25 @@ checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.40.0"
+version = "1.38.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2b070231665d27ad9ec9b8df639893f46727666c6767db40317fbe920a5d998"
+checksum = "eb2caba9f80616f438e09748d5acda951967e1ea58508ef53d9c6402485a46df"
 dependencies = [
  "backtrace",
  "bytes",
  "libc",
  "mio",
+ "num_cpus",
  "pin-project-lite",
  "socket2",
- "windows-sys 0.52.0",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.16"
+version = "0.1.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f4e6ce100d0eb49a2734f8c0812bcd324cf357d21810932c5df6b96ef2b86f1"
+checksum = "267ac89e0bec6e691e5813911606935d77c476ff49024f98abcea3e7b15e37af"
 dependencies = [
  "futures-core",
  "pin-project-lite",
diff --git a/Cargo.toml b/Cargo.toml
index e88a3f29..86e4b41c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -50,6 +50,11 @@ serde_cbor = "0.11"
 serde_json = "1.0"
 zeroize = "1.5"
 
+# temporary overrides to minimize Rust version on Android
+home = { version = "=0.5.5", optional = true }
+tokio = { version = "=1.38.1", optional = true }
+tokio-stream = { version = "=0.1.15", optional = true }
+
 [dependencies.askar-crypto]
 features = ["all_keys", "any_key", "argon2", "crypto_box", "std"]
 path = "./askar-crypto"