diff --git a/Project.toml b/Project.toml
index 03946219..d52bb411 100644
--- a/Project.toml
+++ b/Project.toml
@@ -10,19 +10,6 @@ RecursiveArrayTools = "731186ca-8d62-57ce-b412-fbd966d074cd"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 Requires = "ae029012-a4dd-5104-9daa-d747884805df"
 
-[weakdeps]
-ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
-ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
-Optim = "429524aa-4258-5aef-a3af-852621145aeb"
-RegularizationTools = "29dad682-9a27-4bc3-9c72-016788665182"
-Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"
-
-[extensions]
-DataInterpolationsChainRulesCoreExt = "ChainRulesCore"
-DataInterpolationsOptimExt = ["ForwardDiff", "Optim"]
-DataInterpolationsRegularizationToolsExt = "RegularizationTools"
-DataInterpolationsSymbolicsExt = "Symbolics"
-
 [compat]
 ChainRulesCore = "0.9.44, 0.10, 1"
 ForwardDiff = "0.10"
@@ -31,13 +18,19 @@ Optim = "0.19, 0.20, 0.21, 0.22, 1.0"
 PrettyTables = "2"
 QuadGK = "2.9.1"
 RecipesBase = "0.8, 1.0"
-RecursiveArrayTools = "2"
+RecursiveArrayTools = "2, 3.3"
 Reexport = "0.2, 1.0"
 RegularizationTools = "0.6"
 Requires = "1"
 Symbolics = "4, 5.1"
 julia = "1.6"
 
+[extensions]
+DataInterpolationsChainRulesCoreExt = "ChainRulesCore"
+DataInterpolationsOptimExt = ["ForwardDiff", "Optim"]
+DataInterpolationsRegularizationToolsExt = "RegularizationTools"
+DataInterpolationsSymbolicsExt = "Symbolics"
+
 [extras]
 ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
 FiniteDifferences = "26cc04aa-876d-5657-8c51-4c34ba976000"
@@ -51,3 +44,10 @@ Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
 
 [targets]
 test = ["ChainRulesCore", "Optim", "RegularizationTools", "Test", "StableRNGs", "FiniteDifferences", "QuadGK", "ForwardDiff", "Symbolics"]
+
+[weakdeps]
+ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
+ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
+Optim = "429524aa-4258-5aef-a3af-852621145aeb"
+RegularizationTools = "29dad682-9a27-4bc3-9c72-016788665182"
+Symbolics = "0c5d862f-8b57-4792-8d23-62f2024744c7"