diff --git a/Cargo.toml b/Cargo.toml
index ccf9541..8e03ae2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,10 +29,10 @@ name = "create_test_db"
 required-features = ["benchmark"]
 
 [lib]
-crate-type = ["cdylib"]
+crate-type = ["lib", "cdylib"]
 
 [dependencies]
-zstd = {version = "0.11.2", features = ["experimental"]}
+zstd = {version = "0.13.1", features = ["experimental"]}
 #zstd = {version = "0.5.3", path="../zstd-rs"}
 #zstd = {version = "=0.5.4"}
 anyhow = "1.0.44"
@@ -54,6 +54,11 @@ features = ["functions", "blob", "bundled", "array"]
 package = "rusqlite-le"
 version = "0.24.2"
 
+[patch.crates-io.rusqlite]
+features = ["functions", "blob", "bundled", "array"]
+git = "https://github.com/rusqlite/rusqlite.git"
+tag = "v0.31.0"
+
 [dev-dependencies]
 chrono = "0.4.19"
 names = "0.14.0"
diff --git a/src/basic.rs b/src/basic.rs
index 22a5844..488e309 100644
--- a/src/basic.rs
+++ b/src/basic.rs
@@ -89,7 +89,7 @@ fn zstd_compress_fn_tail<'a>(
     {
         // pledge source size (benchmarking shows this doesn't help any tho)
         let cctx = encoder.context_mut();
-        cctx.set_pledged_src_size(input_value.len() as u64)
+        cctx.set_pledged_src_size(Some(input_value.len() as u64))
             .map_err(|c| anyhow::anyhow!("setting pledged source size (code {c})"))?;
         // cctx.set_parameter(zstd::zstd_safe::CParameter::BlockDelimiters(false))
         //    .map_err(|_| anyhow::anyhow!("no"))?;
diff --git a/src/lib.rs b/src/lib.rs
index 7655e36..7559280 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,5 +1,7 @@
 #![warn(clippy::print_stdout)]
 
+pub extern crate rusqlite;
+
 use rusqlite::Connection;
 use util::init_logging;