diff --git a/Project.toml b/Project.toml
index 831c4d4..1b79a8e 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,5 +19,5 @@ Printf = "1"
 Roots = "2.1.6"
 Static = "0.3, 0.4, 0.5, 0.6, 0.7, 0.8"
 StaticArrays = "1"
-Trixi = "0.7, 0.8"
+Trixi = "0.7 - 0.8.6"
 julia = "1.8"
diff --git a/test/Project.toml b/test/Project.toml
index 172eaa4..a3f6ad8 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -12,7 +12,7 @@ OrdinaryDiffEq = "6.49.1"
 Printf = "1"
 Roots = "2.1.6"
 Test = "1"
-Trixi = "0.7, 0.8"
+Trixi = "0.7 - 0.8.6"
 
 [preferences.OrdinaryDiffEq]
 PrecompileAutoSpecialize = false