diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
index d89e6d7..cd23a60 100644
--- a/.gitea/workflows/ci.yml
+++ b/.gitea/workflows/ci.yml
@@ -10,7 +10,9 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: install deps
-        run: sudo apt install cmake
+        run: |
+          apt update
+          apt install cmake -y
 
       - name: build
         run: |
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 58f442b..b9f754f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
-cmake_minimum_required(VERSION 4.1)
-project(curtle VERSION 0.1.0 LANGUAGES C)
+cmake_minimum_required(VERSION 3.10)
+project(curtle VERSION 0.1.1 LANGUAGES C)
 
 add_library(curtle
         src/linear_algebra.c
diff --git a/include/curtle/curtle.h b/include/curtle/curtle.h
index e69de29..ec19e52 100644
--- a/include/curtle/curtle.h
+++ b/include/curtle/curtle.h
@@ -0,0 +1,6 @@
+#ifndef CURTLE_H
+#define CURTLE_H
+
+#include "curtle/linear_algebra.h"
+
+#endif
\ No newline at end of file