diff --git a/10_Tennis/Tennis.csproj b/10_Tennis/Tennis.csproj
index ef24e8d..8795c9e 100644
--- a/10_Tennis/Tennis.csproj
+++ b/10_Tennis/Tennis.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/11_GildedRose/GildedRoseTests/GildedRoseTests.csproj b/11_GildedRose/GildedRoseTests/GildedRoseTests.csproj
index 4a3e1a4..445235e 100644
--- a/11_GildedRose/GildedRoseTests/GildedRoseTests.csproj
+++ b/11_GildedRose/GildedRoseTests/GildedRoseTests.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/12_Raid/Raid.csproj b/12_Raid/Raid.csproj
index 9fbe879..7308b75 100644
--- a/12_Raid/Raid.csproj
+++ b/12_Raid/Raid.csproj
@@ -11,7 +11,7 @@
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         <PackageReference Include="NSubstitute" Version="5.1.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
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         <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/13_RefactoringGolf/RefactoringGolf.csproj b/13_RefactoringGolf/RefactoringGolf.csproj
index 687c7c3..eb29136 100644
--- a/13_RefactoringGolf/RefactoringGolf.csproj
+++ b/13_RefactoringGolf/RefactoringGolf.csproj
@@ -11,7 +11,7 @@
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         <PackageReference Include="NSubstitute" Version="5.1.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="FluentAssertions" Version="6.12.1" />
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diff --git a/14_SmellyTicTacToe/SmellyTicTacToe.csproj b/14_SmellyTicTacToe/SmellyTicTacToe.csproj
index 7b8aa86..211765e 100644
--- a/14_SmellyTicTacToe/SmellyTicTacToe.csproj
+++ b/14_SmellyTicTacToe/SmellyTicTacToe.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="xunit" Version="2.9.0" />
     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="FluentAssertions" Version="6.12.1" />
     <PackageReference Include="AutoFixture.Idioms" Version="4.18.1" />
     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/15_CharacterCopier/CharacterCopier.csproj b/15_CharacterCopier/CharacterCopier.csproj
index f7547e9..eef57c2 100644
--- a/15_CharacterCopier/CharacterCopier.csproj
+++ b/15_CharacterCopier/CharacterCopier.csproj
@@ -10,7 +10,7 @@
 
     <ItemGroup>
         <PackageReference Include="xunit" Version="2.9.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="FluentAssertions" Version="6.12.1" />
         <PackageReference Include="AutoFixture.Idioms" Version="4.18.1" />
         <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
         <PackageReference Include="AutoFixture.AutoNSubstitute" Version="4.18.1" />
diff --git a/16_TicTacToeMock/TicTacToeMock.csproj b/16_TicTacToeMock/TicTacToeMock.csproj
index 32c1426..9cbcd14 100644
--- a/16_TicTacToeMock/TicTacToeMock.csproj
+++ b/16_TicTacToeMock/TicTacToeMock.csproj
@@ -11,7 +11,7 @@
 
     <ItemGroup>
         <PackageReference Include="xunit" Version="2.9.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="FluentAssertions" Version="6.12.1" />
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         <PackageReference Include="AutoFixture.AutoNSubstitute" Version="4.18.1" />
diff --git a/17_ESAMarsRover/ESAMarsRover.csproj b/17_ESAMarsRover/ESAMarsRover.csproj
index 74c81ba..819dc06 100644
--- a/17_ESAMarsRover/ESAMarsRover.csproj
+++ b/17_ESAMarsRover/ESAMarsRover.csproj
@@ -10,7 +10,7 @@
 
     <ItemGroup>
         <PackageReference Include="xunit" Version="2.9.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="FluentAssertions" Version="6.12.1" />
         <PackageReference Include="AutoFixture.Idioms" Version="4.18.1" />
         <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/18_ShoppingCart/ShoppingCart.csproj b/18_ShoppingCart/ShoppingCart.csproj
index 0b1c680..510c1a7 100644
--- a/18_ShoppingCart/ShoppingCart.csproj
+++ b/18_ShoppingCart/ShoppingCart.csproj
@@ -10,7 +10,7 @@
 
     <ItemGroup>
         <PackageReference Include="xunit" Version="2.9.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
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         <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
         <PackageReference Include="AutoFixture.AutoNSubstitute" Version="4.18.1" />
diff --git a/19_SocialNetwork/SocialNetwork.csproj b/19_SocialNetwork/SocialNetwork.csproj
index fe29247..d14ab11 100644
--- a/19_SocialNetwork/SocialNetwork.csproj
+++ b/19_SocialNetwork/SocialNetwork.csproj
@@ -10,7 +10,7 @@
 
     <ItemGroup>
         <PackageReference Include="xunit" Version="2.9.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
+        <PackageReference Include="FluentAssertions" Version="6.12.1" />
         <PackageReference Include="AutoFixture.Idioms" Version="4.18.1" />
         <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
         <PackageReference Include="AutoFixture.AutoNSubstitute" Version="4.18.1" />
diff --git a/1_FizzBuzz/FizzBuzz.csproj b/1_FizzBuzz/FizzBuzz.csproj
index 827becc..c57c3c5 100644
--- a/1_FizzBuzz/FizzBuzz.csproj
+++ b/1_FizzBuzz/FizzBuzz.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="FluentAssertions" Version="6.12.1" />
     <PackageReference Include="AutoFixture.Idioms" Version="4.18.1" />
     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
     <PackageReference Include="AutoFixture.AutoNSubstitute" Version="4.18.1" />
diff --git a/20_Katacombs/KatacombsTests/KatacombsTests.csproj b/20_Katacombs/KatacombsTests/KatacombsTests.csproj
index a635d3f..d9f7dc0 100644
--- a/20_Katacombs/KatacombsTests/KatacombsTests.csproj
+++ b/20_Katacombs/KatacombsTests/KatacombsTests.csproj
@@ -10,7 +10,7 @@
 
     <ItemGroup>
         <PackageReference Include="xunit" Version="2.9.0" />
-        <PackageReference Include="FluentAssertions" Version="6.12.0" />
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         <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/2_LeapYear/LeapYear.csproj b/2_LeapYear/LeapYear.csproj
index 522f65f..2378ed2 100644
--- a/2_LeapYear/LeapYear.csproj
+++ b/2_LeapYear/LeapYear.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/3_Fibonacci/Fibonacci.csproj b/3_Fibonacci/Fibonacci.csproj
index e73cc51..fdc1c99 100644
--- a/3_Fibonacci/Fibonacci.csproj
+++ b/3_Fibonacci/Fibonacci.csproj
@@ -11,7 +11,7 @@
   <ItemGroup>
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/4_StackKata/StackKata.csproj b/4_StackKata/StackKata.csproj
index 3182e08..560c030 100644
--- a/4_StackKata/StackKata.csproj
+++ b/4_StackKata/StackKata.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="FluentAssertions" Version="6.12.1" />
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     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/5_RomanNumerals/RomanNumerals.csproj b/5_RomanNumerals/RomanNumerals.csproj
index a1ffba7..f35c82d 100644
--- a/5_RomanNumerals/RomanNumerals.csproj
+++ b/5_RomanNumerals/RomanNumerals.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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     <PackageReference Include="AutoFixture.Xunit2" Version="4.18.1" />
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diff --git a/6_PrimeFactors/PrimeFactors.csproj b/6_PrimeFactors/PrimeFactors.csproj
index a9e1db5..cce2040 100644
--- a/6_PrimeFactors/PrimeFactors.csproj
+++ b/6_PrimeFactors/PrimeFactors.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
+    <PackageReference Include="FluentAssertions" Version="6.12.1" />
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diff --git a/7_TicTacToe/TicTacToe.csproj b/7_TicTacToe/TicTacToe.csproj
index be1420c..3469869 100644
--- a/7_TicTacToe/TicTacToe.csproj
+++ b/7_TicTacToe/TicTacToe.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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diff --git a/8_Yahtzee/Yahtzee.csproj b/8_Yahtzee/Yahtzee.csproj
index d125d6d..3fb1e25 100644
--- a/8_Yahtzee/Yahtzee.csproj
+++ b/8_Yahtzee/Yahtzee.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
-    <PackageReference Include="FluentAssertions" Version="6.12.0" />
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diff --git a/9_MarsRover/MarsRover.csproj b/9_MarsRover/MarsRover.csproj
index 0d8fb85..c8e9032 100644
--- a/9_MarsRover/MarsRover.csproj
+++ b/9_MarsRover/MarsRover.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="NSubstitute" Version="5.1.0" />
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