diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b13ee5078..a65e12720 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -32,7 +32,6 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
           - '1.9'
         os:
           - ubuntu-latest
diff --git a/Project.toml b/Project.toml
index 9e4ff298d..7a716c6d2 100644
--- a/Project.toml
+++ b/Project.toml
@@ -54,12 +54,14 @@ FastGaussQuadrature = "0.4, 0.5"
 ForwardDiff = "0.10"
 HCubature = "1.0.0"
 LazyArrays = "0.21, 0.22, 1"
+LinearAlgebra = "1.9"
 LoopVectorization = "0.12"
 MacroTools = "0.5"
 MatrixCorrectionTools = "1.2.0"
 Optim = "1.0.0"
 Optimisers = "0.2"
 PositiveFactorizations = "0.2"
+Random = "1.9"
 Requires = "1"
 Rocket = "1.7.0"
 SpecialFunctions = "1.4, 2"
@@ -69,7 +71,7 @@ StatsFuns = "0.9, 1"
 TinyHugeNumbers = "1.0.0"
 TupleTools = "1.2.0"
 Unrolled = "0.1.3"
-julia = "1.6.0"
+julia = "1.9.0"
 
 [extras]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"