diff --git a/src/2020/AdventOfCode.2020.Puzzles/AdventOfCode.2020.Puzzles.csproj b/src/2020/AdventOfCode.2020.Puzzles/AdventOfCode.2020.Puzzles.csproj
index f6fdc38..12b4198 100644
--- a/src/2020/AdventOfCode.2020.Puzzles/AdventOfCode.2020.Puzzles.csproj
+++ b/src/2020/AdventOfCode.2020.Puzzles/AdventOfCode.2020.Puzzles.csproj
@@ -10,7 +10,7 @@
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   <ItemGroup Label="Package References">
-    <PackageReference Include="morelinq" Version="3.3.2" />
+    <PackageReference Include="morelinq" Version="3.4.2" />
   </ItemGroup>
 
   <ItemGroup>