diff --git a/crates/blas-tests/Cargo.toml b/crates/blas-tests/Cargo.toml
index 05a656000..5697ca3fe 100644
--- a/crates/blas-tests/Cargo.toml
+++ b/crates/blas-tests/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["bluss"]
 publish = false
 edition = "2018"
+rust-version = "1.67"
 
 [lib]
 test = false
diff --git a/crates/numeric-tests/Cargo.toml b/crates/numeric-tests/Cargo.toml
index 214612258..39c06cd53 100644
--- a/crates/numeric-tests/Cargo.toml
+++ b/crates/numeric-tests/Cargo.toml
@@ -4,6 +4,7 @@ version = "0.1.0"
 authors = ["bluss"]
 publish = false
 edition = "2018"
+rust-version = "1.67"
 
 [lib]
 test = false
diff --git a/scripts/all-tests.sh b/scripts/all-tests.sh
index 4ececbcbd..52e5bbd31 100755
--- a/scripts/all-tests.sh
+++ b/scripts/all-tests.sh
@@ -21,8 +21,10 @@ cargo test -v -p ndarray -p ndarray-rand --release --features "$FEATURES" $QC_FE
 # BLAS tests
 cargo test -p ndarray --lib -v --features blas
 cargo test -p blas-mock-tests -v
-cargo test -p blas-tests -v --features blas-tests/openblas-system
-cargo test -p numeric-tests -v --features numeric-tests/test_blas
+if [[ "$CHANNEL" != "1.64.0" ]]; then # Fix openblas-build requiring MSRV 1.67
+    cargo test -p blas-tests -v --features blas-tests/openblas-system
+    cargo test -p numeric-tests -v --features numeric-tests/test_blas
+fi
 
 # Examples
 cargo test --examples