diff --git a/buildfile/src/main/scala/sbt/internal/parser/SbtRefactorings.scala b/buildfile/src/main/scala/sbt/internal/parser/SbtRefactorings.scala
index 278aedc02..13ccc9b2b 100644
--- a/buildfile/src/main/scala/sbt/internal/parser/SbtRefactorings.scala
+++ b/buildfile/src/main/scala/sbt/internal/parser/SbtRefactorings.scala
@@ -37,7 +37,7 @@ private[sbt] object SbtRefactorings:
     val split = SbtParser(FAKE_FILE, lines)
     given ctx: Context = SbtParser.defaultGlobalForParser.compileCtx
     val recordedCommands = recordCommands(commands, split)
-    val sortedRecordedCommands = recordedCommands.sortBy(_._1)(reverseOrderingInt)
+    val sortedRecordedCommands = recordedCommands.sortBy(_._1)(using reverseOrderingInt)
 
     val newContent = replaceFromBottomToTop(lines.mkString(END_OF_LINE), sortedRecordedCommands)
     newContent.linesIterator.toList
diff --git a/main-actions/src/main/scala/sbt/Tests.scala b/main-actions/src/main/scala/sbt/Tests.scala
index 69b5533d3..1a1f7d2ab 100644
--- a/main-actions/src/main/scala/sbt/Tests.scala
+++ b/main-actions/src/main/scala/sbt/Tests.scala
@@ -543,9 +543,7 @@ object Tests {
             }
         }
       sequence(results.toList, List()) map { res =>
-        val (rs, ms) = res.unzip { e =>
-          (e.overall, e.events)
-        }
+        val (rs, ms) = res.unzip(using (e => (e.overall, e.events)))
         val m = ms reduce { (m1: Map[String, SuiteResult], m2: Map[String, SuiteResult]) =>
           Map((m1.toSeq ++ m2.toSeq)*)
         }
diff --git a/main/src/main/scala/sbt/Defaults.scala b/main/src/main/scala/sbt/Defaults.scala
index 0c5da1f5a..beac7026e 100644
--- a/main/src/main/scala/sbt/Defaults.scala
+++ b/main/src/main/scala/sbt/Defaults.scala
@@ -3551,9 +3551,9 @@ object Classpaths {
       import sjsonnew.support.scalajson.unsafe.*
       val moduleIdFormat: JsonFormat[ModuleID] = implicitly[JsonFormat[ModuleID]]
       def write(key: ModuleID): String =
-        CompactPrinter(Converter.toJsonUnsafe(key)(moduleIdFormat))
+        CompactPrinter(Converter.toJsonUnsafe(key)(using moduleIdFormat))
       def read(key: String): ModuleID =
-        Converter.fromJsonUnsafe[ModuleID](Parser.parseUnsafe(key))(moduleIdFormat)
+        Converter.fromJsonUnsafe[ModuleID](Parser.parseUnsafe(key))(using moduleIdFormat)
     }
 
   def classifiersModuleTask: Initialize[Task[GetClassifiersModule]] =
diff --git a/main/src/main/scala/sbt/RemoteCache.scala b/main/src/main/scala/sbt/RemoteCache.scala
index b830c4401..b48b6027d 100644
--- a/main/src/main/scala/sbt/RemoteCache.scala
+++ b/main/src/main/scala/sbt/RemoteCache.scala
@@ -56,7 +56,7 @@ object RemoteCache {
     import LibraryManagementCodec.*
     import sjsonnew.support.scalajson.unsafe.*
     val format: JsonFormat[Artifact] = summon[JsonFormat[Artifact]]
-    CompactPrinter(Converter.toJsonUnsafe(art)(format))
+    CompactPrinter(Converter.toJsonUnsafe(art)(using format))
   }
 
   def gitCommitId: String =
diff --git a/main/src/main/scala/sbt/internal/LibraryManagement.scala b/main/src/main/scala/sbt/internal/LibraryManagement.scala
index 113c1e9c8..c8557ca29 100644
--- a/main/src/main/scala/sbt/internal/LibraryManagement.scala
+++ b/main/src/main/scala/sbt/internal/LibraryManagement.scala
@@ -242,9 +242,9 @@ private[sbt] object LibraryManagement {
       import sjsonnew.support.scalajson.unsafe.*
       val moduleIdFormat: JsonFormat[ModuleID] = implicitly[JsonFormat[ModuleID]]
       def write(key: ModuleID): String =
-        CompactPrinter(Converter.toJsonUnsafe(key)(moduleIdFormat))
+        CompactPrinter(Converter.toJsonUnsafe(key)(using moduleIdFormat))
       def read(key: String): ModuleID =
-        Converter.fromJsonUnsafe[ModuleID](Parser.parseUnsafe(key))(moduleIdFormat)
+        Converter.fromJsonUnsafe[ModuleID](Parser.parseUnsafe(key))(using moduleIdFormat)
     }
 
   /**
diff --git a/main/src/main/scala/sbt/nio/FileStamp.scala b/main/src/main/scala/sbt/nio/FileStamp.scala
index b55c84375..8987cdf41 100644
--- a/main/src/main/scala/sbt/nio/FileStamp.scala
+++ b/main/src/main/scala/sbt/nio/FileStamp.scala
@@ -158,13 +158,13 @@ object FileStamp {
         override def write[J](obj: Seq[(Path, FileStamp)], builder: Builder[J]): Unit = {
           val (hashes, lastModifiedTimes) = obj.partition(_._2.isInstanceOf[Hash])
           builder.beginObject()
-          builder.addField("hashes", hashes.asInstanceOf[Seq[(Path, Hash)]])(
+          builder.addField("hashes", hashes.asInstanceOf[Seq[(Path, Hash)]])(using
             seqPathHashJsonFormatter
           )
           builder.addField(
             "lastModifiedTimes",
             lastModifiedTimes.asInstanceOf[Seq[(Path, LastModified)]]
-          )(seqPathLastModifiedJsonFormatter)
+          )(using seqPathLastModifiedJsonFormatter)
           builder.endObject()
         }