diff --git a/T/TestParticle/Compat.toml b/T/TestParticle/Compat.toml
index 1a6435373b795db..014f85c307ca700 100644
--- a/T/TestParticle/Compat.toml
+++ b/T/TestParticle/Compat.toml
@@ -80,6 +80,9 @@ DiffResults = "1.1.0 - 1"
 Adapt = "4.4.0 - 4"
 KernelAbstractions = "0.9"
 
+["0.18.5 - 0"]
+DiffResults = "1"
+
 ["0.2 - 0.14.1"]
 SpecialFunctions = "1.5.0-2"
 
diff --git a/T/TestParticle/Deps.toml b/T/TestParticle/Deps.toml
index e56e042954d7ade..c13d27ed866fcb2 100644
--- a/T/TestParticle/Deps.toml
+++ b/T/TestParticle/Deps.toml
@@ -29,6 +29,9 @@ DiffResults = "163ba53b-c6d8-5494-b064-1a9d43ac40c5"
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
 KernelAbstractions = "63c18a36-062a-441e-b654-da1e3ab1ce7c"
 
+["0.18.5 - 0"]
+DiffResults = "163ba53b-c6d8-5494-b064-1a9d43ac40c5"
+
 ["0.2 - 0.2.3"]
 SnoopPrecompile = "66db9d55-30c0-4569-8b51-7e840670fc0c"
 
diff --git a/T/TestParticle/Versions.toml b/T/TestParticle/Versions.toml
index 13604ba943722d1..aa081005b487335 100644
--- a/T/TestParticle/Versions.toml
+++ b/T/TestParticle/Versions.toml
@@ -174,3 +174,6 @@ git-tree-sha1 = "afe299e8ac08141e0e342b7e4688de52cd22c22d"
 
 ["0.18.4"]
 git-tree-sha1 = "d4c1bcbf21ef9d4d5b653dd53d70131c3b74c2a4"
+
+["0.18.5"]
+git-tree-sha1 = "03f4d4fbfb2d72fdac8946eb002f4d007cbc10c8"