diff --git a/.github/workflows/.#rust.yml b/.github/workflows/.#rust.yml
new file mode 120000
index 0000000..5792e15
--- /dev/null
+++ b/.github/workflows/.#rust.yml
@@ -0,0 +1 @@
+tobin@pantera.283300:1761534469
\ No newline at end of file
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index fa46ed8..1216974 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -50,7 +50,7 @@ jobs:
           DO_NO_STD: true
         run: ./contrib/test.sh
 
-  MSRV:
+  MSRV-1-41:
     name: Test - 1.41.1 toolchain
     runs-on: ubuntu-latest
     strategy:
@@ -66,6 +66,54 @@ jobs:
           DO_FEATURE_MATRIX: true
         run: ./contrib/test.sh
 
+  MSRV-1-48:
+    name: Test - 1.48.0 toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@1.48.0
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+          DO_FEATURE_MATRIX: true
+        run: ./contrib/test.sh
+
+  MSRV-1-51:
+    name: Test - 1.51.0 toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@1.51.0
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+          DO_FEATURE_MATRIX: true
+        run: ./contrib/test.sh
+
+  MSRV-1-56:
+    name: Test - 1.56.0 toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+      - name: Checkout Crate
+        uses: actions/checkout@v3
+      - name: Checkout Toolchain
+        uses: dtolnay/rust-toolchain@1.56.0
+      - name: Running test script
+        env:
+          DO_NO_STD: true
+          DO_FEATURE_MATRIX: true
+        run: ./contrib/test.sh
+
   Arch32bit:
     name: Test 32-bit version
     runs-on: ubuntu-latest
diff --git a/Cargo.toml b/Cargo.toml
index 2dabf65..9885079 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -49,13 +49,13 @@ serde = { version = "1.0", default-features = false, features = [ "alloc" ], opt
 zeroize = { version = "1.5", features = ["zeroize_derive"], optional = true }
 
 # Unexported dependnecies
-bitcoin_hashes = { version = ">=0.12, <=0.13", default-features = false }
+bitcoin_hashes = { version = ">=0.12,<0.15", default-features = false }
 unicode-normalization = { version = "0.1.22", default-features = false, optional = true }
 
 [dev-dependencies]
 # Enabling the "rand" feature by default to run the benches
 bip39 = { path = ".", features = ["rand"] }
-bitcoin_hashes = ">=0.12,<0.14" # enable default features for test
+bitcoin_hashes = ">=0.12,<0.15" # enable default features for test
 
 
 [package.metadata.docs.rs]
diff --git a/README.md b/README.md
index b689e88..15780f0 100644
--- a/README.md
+++ b/README.md
@@ -33,11 +33,12 @@ This crate supports Rust v1.41.1 and up and works with `no_std`.
 
 The `bitcoin_hashes` range dependency effects the MSRV as follows
 
-- `bitcoin_hashes v0.12`: MSRV v1.41.1
-- `bitcoin_hashes v0.13`: MSRV v1.48.0
+- `bitcoin_hashes v0.12`: MSRV `v1.41.1`
+- `bitcoin_hashes v0.13`: MSRV `v1.48.0`
+- `bitcoin_hashes v0.14`: MSRV `v1.56.1`
 
 When using older version of Rust, you might have to pin the versions of several crates, for an up-to-date list refer to [`contrib/test.sh`](contrib/test.sh):
-
+ 
 ```bash
 cargo update --package "bitcoin_hashes" --precise "0.12.0"
 cargo update --package "rand" --precise "0.6.0"
@@ -46,4 +47,4 @@ cargo update --package "tinyvec" --precise "1.6.0"
 cargo update --package "unicode-normalization" --precise "0.1.22"
 ```
 
-If you enable the `zeroize` feature the MSRV becomes 1.51.
+If you enable the `zeroize` feature the MSRV becomes `v1.51.0`.
diff --git a/contrib/test.sh b/contrib/test.sh
index 85ddac4..0ea920b 100755
--- a/contrib/test.sh
+++ b/contrib/test.sh
@@ -3,16 +3,20 @@
 set -ex
 
 FEATURES="serde rand all-languages chinese-simplified chinese-traditional czech french italian japanese korean portuguese spanish"
+RUSTC_MINOR_VERSION=$(rustc --version | awk '{ split($2,a,"."); print a[2] }')
 
 cargo --version
 rustc --version
 
-# Pin dependencies as required if we are using MSRV toolchain.
-if cargo --version | grep "1\.41"; then
+# Check the minimal lock file for all MSRV toolchains we test.
+if [ "$RUSTC_MINOR_VERSION" -eq 56 ]; then
     cp Cargo-minimal.lock Cargo.lock
     cargo check --locked
     rm Cargo.lock
+fi
 
+# The crate's lowest MSRV (not lifted by `bitcoin_hashes` dep or `zeroize` feature). 
+if [ "$RUSTC_MINOR_VERSION" -eq 41 ]; then
     cargo update --package "bitcoin_hashes" --precise "0.12.0"
     cargo update --package "rand" --precise "0.6.0"
     cargo update --package "libc" --precise "0.2.151"
@@ -20,6 +24,10 @@ if cargo --version | grep "1\.41"; then
     cargo update --package "unicode-normalization" --precise "0.1.22"
 fi
 
+# `bitcoin_hashes` version raises the crate MSRV, we test with these toolchains explicitly in CI.
+[ "$RUSTC_MINOR_VERSION" -eq 48 ]  && cargo update --package "bitcoin_hashes" --precise "0.13.0"
+[ "$RUSTC_MINOR_VERSION" -eq 56 ]  && cargo update --package "bitcoin_hashes" --precise "0.14.0"
+
 echo "********* Testing std *************"
 # Test without any features other than std first
 cargo test --verbose --no-default-features --features="std"
@@ -34,7 +42,7 @@ do
     cargo build --verbose --features="$feature" --no-default-features
 done
 
-if cargo --version | grep -v "1\.41"; then
+if [ "$RUSTC_MINOR_VERSION" -ge 51 ]; then
     cargo build --verbose --features="zeroize" --no-default-features
 fi