diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 402bd910..650dc204 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -2,7 +2,7 @@ name: Linux / MacOS - c++
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
 
   workflow_dispatch:
diff --git a/.github/workflows/sympy.yml b/.github/workflows/sympy.yml
index 7c72ccae..6ec7ffe5 100644
--- a/.github/workflows/sympy.yml
+++ b/.github/workflows/sympy.yml
@@ -2,7 +2,7 @@ name: Linux - sympy
 
 on:
   push:
-    branches: [ master ]
+    branches: [ main ]
   pull_request:
 
   workflow_dispatch:
@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04]
+        os: [ubuntu-22.04]
       fail-fast: false