=== modified file 'Cargo.toml'
Index: unstable/Cargo.toml
===================================================================
--- unstable.orig/Cargo.toml
+++ unstable/Cargo.toml
@@ -19,4 +19,4 @@ name = "brz"
 path = "breezy/main.rs"
 
 [dependencies]
-pyo3 = ">=0.14,<0.16"
+pyo3 = ">=0.14"
Index: unstable/lib-rio/Cargo.toml
===================================================================
--- unstable.orig/lib-rio/Cargo.toml
+++ unstable/lib-rio/Cargo.toml
@@ -9,8 +9,7 @@ name = "rio"
 path = "pyrio.rs"
 
 [dependencies.pyo3]
-# Use pyo3 < 0.16, as that drop support for Python 3.6.
-version = ">=0.14,<0.16"
+version = ">=0.14"
 
 [dependencies.lazy_static]
 version = "1.4.0"
