diff --git a/.github/workflows/docker-tests.yml b/.github/workflows/docker-tests.yml
index d3e19ca..92a7ec8 100644
--- a/.github/workflows/docker-tests.yml
+++ b/.github/workflows/docker-tests.yml
@@ -62,7 +62,7 @@ jobs:
           type=raw,value=latest,enable={{is_default_branch}}
           type=raw,value=v9
           type=raw,value=v9.1
-          type=raw,value=v9.1.0
+          type=raw,value=v9.1.1
 
     - name: Build and push Docker image
       uses: docker/build-push-action@v6
diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index b7f595c..f076431 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -89,6 +89,10 @@ jobs:
           python-version: 3.x
       - name: Build wheels
         uses: PyO3/maturin-action@v1
+        env:
+          # Fix ARM cross-compilation: define __ARM_ARCH for assembly files
+          CFLAGS_aarch64_unknown_linux_gnu: "-march=armv8-a"
+          CFLAGS_armv7_unknown_linux_gnueabihf: "-march=armv7-a -mfpu=neon"
         with:
           target: ${{ matrix.platform.target }}
           args: --release --out dist --find-interpreter
diff --git a/Cargo.toml b/Cargo.toml
index 3f4c75e..501203d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "cloudcheck"
-version = "9.1.0"
+version = "9.1.1"
 edition = "2024"
 description = "CloudCheck is a simple Rust tool to check whether an IP address or hostname belongs to a cloud provider."
 license = "GPL-3.0"
diff --git a/pyproject.toml b/pyproject.toml
index 38bfbab..a5f4212 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "maturin"
 
 [project]
 name = "cloudcheck"
-version = "9.1.0"
+version = "9.1.1"
 description = "Detailed database of cloud providers. Instantly look up a domain or IP address"
 readme = "README.md"
 requires-python = ">=3.9"