diff --git a/src/ColumnizerLib.UnitTests/ColumnizerLib.UnitTests.csproj b/src/ColumnizerLib.UnitTests/ColumnizerLib.UnitTests.csproj
index 44fd5e28..b086efdc 100644
--- a/src/ColumnizerLib.UnitTests/ColumnizerLib.UnitTests.csproj
+++ b/src/ColumnizerLib.UnitTests/ColumnizerLib.UnitTests.csproj
@@ -59,10 +59,10 @@
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+      <Version>3.15.1</Version>
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diff --git a/src/JsonColumnizer/JsonColumnizer.csproj b/src/JsonColumnizer/JsonColumnizer.csproj
index 0b165872..e2dc7401 100644
--- a/src/JsonColumnizer/JsonColumnizer.csproj
+++ b/src/JsonColumnizer/JsonColumnizer.csproj
@@ -72,7 +72,7 @@
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diff --git a/src/JsonCompactColumnizer/JsonCompactColumnizer.csproj b/src/JsonCompactColumnizer/JsonCompactColumnizer.csproj
index f7544bd9..14e629ae 100644
--- a/src/JsonCompactColumnizer/JsonCompactColumnizer.csproj
+++ b/src/JsonCompactColumnizer/JsonCompactColumnizer.csproj
@@ -76,7 +76,7 @@
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diff --git a/src/LogExpert.Tests/LogExpert.Tests.csproj b/src/LogExpert.Tests/LogExpert.Tests.csproj
index 171f47bf..dfe7a4e3 100644
--- a/src/LogExpert.Tests/LogExpert.Tests.csproj
+++ b/src/LogExpert.Tests/LogExpert.Tests.csproj
@@ -62,13 +62,13 @@
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+      <Version>3.12.0</Version>
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diff --git a/src/LogExpert/LogExpert.csproj b/src/LogExpert/LogExpert.csproj
index 19689514..05e419be 100644
--- a/src/LogExpert/LogExpert.csproj
+++ b/src/LogExpert/LogExpert.csproj
@@ -587,7 +587,7 @@
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