diff --git a/internal/zinc-persist/src/main/scala/sbt/internal/inc/consistent/ConsistentFileAnalysisStore.scala b/internal/zinc-persist/src/main/scala/sbt/internal/inc/consistent/ConsistentFileAnalysisStore.scala
index 5cb69fcab..418eae932 100644
--- a/internal/zinc-persist/src/main/scala/sbt/internal/inc/consistent/ConsistentFileAnalysisStore.scala
+++ b/internal/zinc-persist/src/main/scala/sbt/internal/inc/consistent/ConsistentFileAnalysisStore.scala
@@ -12,29 +12,25 @@ package sbt.internal.inc.consistent
  * additional information regarding copyright ownership.
  */
 
-import java.io.{ File, FileInputStream, FileOutputStream }
-import java.util.Optional
 import sbt.io.{ IO, Using }
+import xsbti.compile.analysis.ReadWriteMappers
 import xsbti.compile.{ AnalysisContents, AnalysisStore => XAnalysisStore }
 
+import java.io.{ File, FileInputStream, FileOutputStream }
+import java.util.Optional
 import scala.util.control.Exception.allCatch
-import xsbti.compile.analysis.ReadWriteMappers
-
-import scala.concurrent.ExecutionContext
 
 object ConsistentFileAnalysisStore {
   def text(
       file: File,
       mappers: ReadWriteMappers,
       sort: Boolean = true,
-      ec: ExecutionContext = ExecutionContext.global,
       parallelism: Int = Runtime.getRuntime.availableProcessors()
   ): XAnalysisStore =
     new AStore(
       file,
       new ConsistentAnalysisFormat(mappers, sort),
       SerializerFactory.text,
-      ec,
       parallelism
     )
 
@@ -59,14 +55,12 @@ object ConsistentFileAnalysisStore {
       file: File,
       mappers: ReadWriteMappers,
       sort: Boolean,
-      ec: ExecutionContext = ExecutionContext.global,
       parallelism: Int = Runtime.getRuntime.availableProcessors()
   ): XAnalysisStore =
     new AStore(
       file,
       new ConsistentAnalysisFormat(mappers, sort),
       SerializerFactory.binary,
-      ec,
       parallelism
     )
 
@@ -74,7 +68,6 @@ object ConsistentFileAnalysisStore {
       file: File,
       format: ConsistentAnalysisFormat,
       sf: SerializerFactory[S, D],
-      ec: ExecutionContext = ExecutionContext.global,
       parallelism: Int = Runtime.getRuntime.availableProcessors()
   ) extends XAnalysisStore {
 
@@ -85,7 +78,7 @@ object ConsistentFileAnalysisStore {
       if (!file.getParentFile.exists()) file.getParentFile.mkdirs()
       val fout = new FileOutputStream(tmpAnalysisFile)
       try {
-        val gout = new ParallelGzipOutputStream(fout, ec, parallelism)
+        val gout = new ParallelGzipOutputStream(fout, parallelism)
         val ser = sf.serializerFor(gout)
         format.write(ser, analysis, setup)
         gout.close()
diff --git a/zinc/src/main/scala/sbt/internal/inc/MixedAnalyzingCompiler.scala b/zinc/src/main/scala/sbt/internal/inc/MixedAnalyzingCompiler.scala
index 81ed0f88f..e228ab573 100644
--- a/zinc/src/main/scala/sbt/internal/inc/MixedAnalyzingCompiler.scala
+++ b/zinc/src/main/scala/sbt/internal/inc/MixedAnalyzingCompiler.scala
@@ -507,7 +507,6 @@ object MixedAnalyzingCompiler {
       useConsistent = false,
       mappers = ReadWriteMappers.getEmptyMappers(),
       sort = true,
-      ec = ExecutionContext.global,
       parallelism = Runtime.getRuntime.availableProcessors(),
     )
 
@@ -517,7 +516,6 @@ object MixedAnalyzingCompiler {
       useConsistent: Boolean,
       mappers: ReadWriteMappers,
       sort: Boolean,
-      ec: ExecutionContext,
       parallelism: Int,
   ): AnalysisStore = {
     val fileStore = (useTextAnalysis, useConsistent) match {
@@ -528,7 +526,6 @@ object MixedAnalyzingCompiler {
           file = analysisFile.toFile,
           mappers = mappers,
           sort = sort,
-          ec = ec,
           parallelism = parallelism,
         )
       case (true, false) =>
@@ -538,7 +535,6 @@ object MixedAnalyzingCompiler {
           file = analysisFile.toFile,
           mappers = mappers,
           sort = sort,
-          ec = ec,
           parallelism = parallelism,
         )
     }