diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index b1832b166..1ffb9e181 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -120,6 +120,8 @@ jobs:
           cargo test
           cd examples
           cargo run --example standalone_sql --features=ballista/standalone
+          cd ../python
+          cargo test
         env:
           CARGO_HOME: "/github/home/.cargo"
           CARGO_TARGET_DIR: "/github/home/target"
diff --git a/python/Cargo.toml b/python/Cargo.toml
index 758d162f3..dbe419d28 100644
--- a/python/Cargo.toml
+++ b/python/Cargo.toml
@@ -33,9 +33,9 @@ publish = false
 async-trait = "0.1.77"
 ballista = { path = "../ballista/client", version = "0.12.0" }
 ballista-core = { path = "../ballista/core", version = "0.12.0" }
-datafusion = { workspace = true }
-datafusion-proto = { workspace = true }
-datafusion-python = { workspace = true }
+datafusion = { version = "42" }
+datafusion-proto = { version = "42" }
+datafusion-python = { version = "42" }
 
 pyo3 = { version = "0.22", features = ["extension-module", "abi3", "abi3-py38"] }
 pyo3-log = "0.11.0"
diff --git a/python/src/context.rs b/python/src/context.rs
index be7dd6109..eccdede9e 100644
--- a/python/src/context.rs
+++ b/python/src/context.rs
@@ -204,7 +204,7 @@ impl PySessionContext {
                 e.into_iter()
                     .map(|f| {
                         let sort_expr: SortExpr = f.into();
-                        *sort_expr.expr
+                        sort_expr
                     })
                     .collect()
             })
@@ -323,7 +323,7 @@ impl PySessionContext {
                 e.into_iter()
                     .map(|f| {
                         let sort_expr: SortExpr = f.into();
-                        *sort_expr.expr
+                        sort_expr
                     })
                     .collect()
             })