diff --git a/src/Renci.SshNet/Security/Cryptography/Bcrypt.cs b/src/Renci.SshNet/Security/Cryptography/Bcrypt.cs
index 40ab0695..f097b277 100644
--- a/src/Renci.SshNet/Security/Cryptography/Bcrypt.cs
+++ b/src/Renci.SshNet/Security/Cryptography/Bcrypt.cs
@@ -15,6 +15,7 @@
 // OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 
 using Renci.SshNet.Abstractions;
+
 using System;
 using System.Diagnostics;
 using System.Security.Cryptography;
@@ -902,7 +903,7 @@ namespace Renci.SshNet.Security.Cryptography
         /// <param name="b1"></param>
         /// <param name="others"></param>
         /// <returns></returns>
-        private byte[] AppendArrays(byte[] b1, params byte[][] others)
+        private static byte[] AppendArrays(byte[] b1, params byte[][] others)
         {
             //from https://stackoverflow.com/questions/46534429/how-to-convert-java-messagedigest-with-two-update-statements-to-c-sharp
             int n = b1.Length;
diff --git a/src/Renci.SshNet/Session.cs b/src/Renci.SshNet/Session.cs
index 19bee9d6..517ba6af 100644
--- a/src/Renci.SshNet/Session.cs
+++ b/src/Renci.SshNet/Session.cs
@@ -316,7 +316,9 @@ namespace Renci.SshNet
         /// <value>
         /// The client version.
         /// </value>
+#pragma warning disable S2325 // Methods and properties that don't access instance data should be static
         public string ClientVersion
+#pragma warning restore S2325 // Methods and properties that don't access instance data should be static
         {
             get
             {
diff --git a/src/Renci.SshNet/ShellStream.cs b/src/Renci.SshNet/ShellStream.cs
index d7228229..ac12cd2c 100644
--- a/src/Renci.SshNet/ShellStream.cs
+++ b/src/Renci.SshNet/ShellStream.cs
@@ -605,7 +605,9 @@ namespace Renci.SshNet
         /// <returns>
         /// The text available in the shell up to and including the expected expression.
         /// </returns>
+#pragma warning disable S2325 // Methods and properties that don't access instance data should be static
         public string? EndExpect(IAsyncResult asyncResult)
+#pragma warning restore S2325 // Methods and properties that don't access instance data should be static
         {
             return TaskToAsyncResult.End<string?>(asyncResult);
         }
diff --git a/test/Renci.SshNet.IntegrationBenchmarks/.editorconfig b/test/Renci.SshNet.IntegrationBenchmarks/.editorconfig
index 3e3e6d5e..13a8fc84 100644
--- a/test/Renci.SshNet.IntegrationBenchmarks/.editorconfig
+++ b/test/Renci.SshNet.IntegrationBenchmarks/.editorconfig
@@ -14,6 +14,9 @@ dotnet_diagnostic.S1118.severity = suggestion
 # https://rules.sonarsource.com/csharp/RSPEC-1450/
 dotnet_diagnostic.S1450.severity = suggestion
 
+# S2325: Methods and properties that don't access instance data should be static
+dotnet_diagnostic.S2325.severity = silent
+
 # S4144: Methods should not have identical implementations
 # https://rules.sonarsource.com/csharp/RSPEC-4144/
 dotnet_diagnostic.S4144.severity = suggestion
diff --git a/test/Renci.SshNet.IntegrationTests/.editorconfig b/test/Renci.SshNet.IntegrationTests/.editorconfig
index ecfbce76..d8f9762e 100644
--- a/test/Renci.SshNet.IntegrationTests/.editorconfig
+++ b/test/Renci.SshNet.IntegrationTests/.editorconfig
@@ -22,6 +22,9 @@ dotnet_diagnostic.S1155.severity = silent
 # https://rules.sonarsource.com/csharp/RSPEC-1607/
 dotnet_diagnostic.S1607.severity = silent
 
+# S2325: Methods and properties that don't access instance data should be static
+dotnet_diagnostic.S2325.severity = silent
+
 # S2925: "Thread.Sleep" should not be used in tests
 # https://rules.sonarsource.com/csharp/RSPEC-2925/
 dotnet_diagnostic.S2925.severity = silent
diff --git a/test/Renci.SshNet.TestTools.OpenSSH/.editorconfig b/test/Renci.SshNet.TestTools.OpenSSH/.editorconfig
index f09ad633..76c9dc31 100644
--- a/test/Renci.SshNet.TestTools.OpenSSH/.editorconfig
+++ b/test/Renci.SshNet.TestTools.OpenSSH/.editorconfig
@@ -1,5 +1,10 @@
 [*.cs]
 
+#### Sonar rules ####
+
+# S2325: Methods and properties that don't access instance data should be static
+dotnet_diagnostic.S2325.severity = silent
+
 #### Meziantou.Analyzer rules ####
 
 # MA0001: StringComparison is missing
diff --git a/test/Renci.SshNet.Tests/.editorconfig b/test/Renci.SshNet.Tests/.editorconfig
index ae7f4921..bd4039b5 100644
--- a/test/Renci.SshNet.Tests/.editorconfig
+++ b/test/Renci.SshNet.Tests/.editorconfig
@@ -34,6 +34,9 @@ dotnet_diagnostic.S2187.severity = silent
 # https://rules.sonarsource.com/csharp/RSPEC-2292/
 dotnet_diagnostic.S2292.severity = silent
 
+# S2325: Methods and properties that don't access instance data should be static
+dotnet_diagnostic.S2325.severity = silent
+
 # S2925: "Thread.Sleep" should not be used in tests
 # https://rules.sonarsource.com/csharp/RSPEC-2925/
 dotnet_diagnostic.S2925.severity = silent