diff --git a/crates/cdk-sqlite/README.md b/crates/cdk-sqlite/README.md
index 22d41c29..ce1b2700 100644
--- a/crates/cdk-sqlite/README.md
+++ b/crates/cdk-sqlite/README.md
@@ -18,6 +18,21 @@ The following crate feature flags are available:
 
 See <https://github.com/cashubtc/cdk/blob/main/README.md>
 
+
+## Minimum Supported Rust Version (MSRV)
+
+The `cdk` library should always compile with any combination of features on Rust **1.63.0**.
+
+To build and test with the MSRV you will need to pin the below dependency versions:
+
+```shell
+cargo update -p half --precise 2.2.1
+cargo update -p home --precise 0.5.5
+cargo update -p tokio --precise 1.38.1
+cargo update -p serde_with --precise 3.1.0
+cargo update -p reqwest --precise 0.12.4
+```
+
 ## License
 
 This project is distributed under the MIT software license - see the [LICENSE](../../LICENSE) file for details.
diff --git a/flake.nix b/flake.nix
index a1a6385c..7d66c11f 100644
--- a/flake.nix
+++ b/flake.nix
@@ -149,10 +149,7 @@
               cargo update -p home --precise 0.5.5
               cargo update -p tokio --precise 1.38.1
               cargo update -p serde_with --precise 3.1.0
-              # cargo update -p prost-derive --precise 0.12.3
-              # cargo update -p prost --precise 0.12.3
-              # cargo update -p prost-build --precise 0.12.3
-              # cargo update -p prost-types --precise 0.12.3
+              cargo update -p reqwest --precise 0.12.4
               ";
               buildInputs = buildInputs ++ WASMInputs ++ [ db_msrv_toolchain ];
               inherit nativeBuildInputs;