diff --git a/.github/workflows/checking.yml b/.github/workflows/checking.yml
index c19a273..bff4d8d 100644
--- a/.github/workflows/checking.yml
+++ b/.github/workflows/checking.yml
@@ -10,7 +10,7 @@ jobs:
       fail-fast: false
       matrix:
         toolchain: 
-          - 1.54.0
+          - 1.64.0
           - stable
           - nightly
         os:
diff --git a/.github/workflows/codequality.yml b/.github/workflows/codequality.yml
index 93aa803..bad4c4e 100644
--- a/.github/workflows/codequality.yml
+++ b/.github/workflows/codequality.yml
@@ -10,7 +10,7 @@ jobs:
     strategy:
       matrix:
         toolchain:
-          - 1.54.0
+          - 1.64.0
           - stable
 
     steps:
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index a1ccefa..044a7d1 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -11,7 +11,7 @@ jobs:
       fail-fast: false
       matrix:
         toolchain:
-          - 1.54.0
+          - 1.64.0
           - stable
         os:
           - ubuntu-18.04
diff --git a/src/lib.rs b/src/lib.rs
index 660937a..05187cf 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,6 +10,7 @@
 //! linker errors if no BLAS backend is specified.
 
 #![allow(clippy::many_single_char_names)]
+#![allow(clippy::result_large_err)]
 
 pub mod bidiagonal;
 pub mod cholesky;