diff --git a/bindings/python/build-wheels.sh b/bindings/python/build-wheels.sh
index b7e11cedf..17127717b 100755
--- a/bindings/python/build-wheels.sh
+++ b/bindings/python/build-wheels.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -ex
 
-curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain nightly-2020-05-14 -y
+curl https://sh.rustup.rs -sSf | sh -s -- --default-toolchain "1.46.0" -y
 export PATH="$HOME/.cargo/bin:$PATH"
 
 for PYBIN in /opt/python/{cp35-cp35m,cp36-cp36m,cp37-cp37m,cp38-cp38}/bin; do
diff --git a/bindings/python/rust-toolchain b/bindings/python/rust-toolchain
index 2bf5ad044..0a3db35b2 100644
--- a/bindings/python/rust-toolchain
+++ b/bindings/python/rust-toolchain
@@ -1 +1 @@
-stable
+1.46.0