diff --git a/Cargo.lock b/Cargo.lock
index 5af43a05..c8e774b3 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -126,7 +126,7 @@ dependencies = [
  "itoa",
  "once_cell",
  "pyo3",
- "pyo3-build-config",
+ "pyo3-build-config 0.20.0",
  "rmp",
  "rmp-serde",
  "serde",
@@ -192,7 +192,7 @@ dependencies = [
  "libc",
  "memoffset",
  "parking_lot",
- "pyo3-build-config",
+ "pyo3-build-config 0.19.2",
  "pyo3-ffi",
 ]
 
@@ -206,6 +206,16 @@ dependencies = [
  "target-lexicon",
 ]
 
+[[package]]
+name = "pyo3-build-config"
+version = "0.20.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a96fe70b176a89cff78f2fa7b3c930081e163d5379b4dcdf993e3ae29ca662e5"
+dependencies = [
+ "once_cell",
+ "target-lexicon",
+]
+
 [[package]]
 name = "pyo3-ffi"
 version = "0.19.2"
@@ -213,7 +223,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e53cee42e77ebe256066ba8aa77eff722b3bb91f3419177cf4cd0f304d3284d9"
 dependencies = [
  "libc",
- "pyo3-build-config",
+ "pyo3-build-config 0.19.2",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index 89572c52..69a1b720 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -55,7 +55,7 @@ rmp-serde = {version = "1"}
 
 
 [build-dependencies]
-pyo3-build-config = { version = "0.19.2" }
+pyo3-build-config = { version = "0.20.0" }
 
 [profile.release]
 codegen-units = 1