diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index c74bb0e..e98edc3 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: ['1.4']
+        julia-version: ['1.6']
         os: [ubuntu-latest]
     steps:
       - uses: actions/checkout@v2
diff --git a/Project.toml b/Project.toml
index de5cd5f..413d2ab 100644
--- a/Project.toml
+++ b/Project.toml
@@ -16,7 +16,7 @@ ControlSystemIdentification = "0.2, 1"
 RecipesBase = "0.7, 0.8, 1.0"
 Requires = "0.5, 1.0"
 TotalLeastSquares = "1.3"
-julia = "1.4"
+julia = "1.6"
 
 [extras]
 ControlSystemIdentification = "3abffc1c-5106-53b7-b354-a47bfc086282"