diff --git a/coin/provisioning/common/linux/sccache.sh b/coin/provisioning/common/linux/sccache.sh
index 73894902..2e605996 100755
--- a/coin/provisioning/common/linux/sccache.sh
+++ b/coin/provisioning/common/linux/sccache.sh
@@ -6,13 +6,13 @@ set -ex
 
 source "${BASH_SOURCE%/*}/../unix/sccache.sh"
 
-targetVersion=v0.11.0
+targetVersion=v0.15.0
 if [[ $(uname -m) == 'aarch64' ]]; then
   targetArch=aarch64-unknown-linux-musl
-  sha1=b7606d0fb461c0aa7351f511d9223416a322d52a
+  sha256=3a6a3712b49da3d263bf2d30d702de4302793016019e800bfb81c0c69401d8f8
 else
   targetArch=x86_64-unknown-linux-musl
-  sha1=ef389a20c85b732cccd48436a5e28ed40bed2806
+  sha256=782d2b5dd7ae0a55ebe368ab258114d0928d019ac2d949ab85d5d02f3926709e
 fi
 
-installSccache "$targetArch" "$targetVersion" "$sha1"
+installSccache "$targetArch" "$targetVersion" "$sha256"
diff --git a/coin/provisioning/common/macos/sccache.sh b/coin/provisioning/common/macos/sccache.sh
index 29845727..17dc0d5d 100755
--- a/coin/provisioning/common/macos/sccache.sh
+++ b/coin/provisioning/common/macos/sccache.sh
@@ -6,12 +6,12 @@ set -ex
 
 source "${BASH_SOURCE%/*}/../unix/sccache.sh"
 
-targetVersion=v0.11.0
+targetVersion=v0.15.0
 if [[ `arch` == arm* ]]; then
     targetArch=aarch64-apple-darwin
-    sha1=3261ab99e5bb1f9f36eafa597d11491bd85da5ec
+    sha256=430ef7b5f54256d3ed5bfe77e8b0afc51aa209aeebe4f95b69c3a52ce3acc6e9
 else
     targetArch=x86_64-apple-darwin
-    sha1=57810789bf2813dfa9bf5da26a712dc30b56ce16
+    sha256=f8da93e0689122268f720ddb48c8357f3da18be8c88aff23a8e75a7a219367db
 fi
-installSccache "$targetArch" "$targetVersion" "$sha1"
+installSccache "$targetArch" "$targetVersion" "$sha256"
diff --git a/coin/provisioning/common/unix/sccache.sh b/coin/provisioning/common/unix/sccache.sh
index ab4ffd3c..2c1bacfc 100755
--- a/coin/provisioning/common/unix/sccache.sh
+++ b/coin/provisioning/common/unix/sccache.sh
@@ -36,4 +36,6 @@ function installSccache {
     # Prevents some random network I/O errors from failing compilation
     # Does not seem to affect much though
     SetEnvVar "SCCACHE_IGNORE_SERVER_IO_ERROR" "1"
+    # Enable a local preprocessor cache.
+    SetEnvVar SCCACHE_DIRECT 1
 }
diff --git a/coin/provisioning/common/windows/install-sccache.ps1 b/coin/provisioning/common/windows/install-sccache.ps1
index 95b4ac1c..6c1d3509 100644
--- a/coin/provisioning/common/windows/install-sccache.ps1
+++ b/coin/provisioning/common/windows/install-sccache.ps1
@@ -6,22 +6,22 @@
 
 . "$PSScriptRoot\helpers.ps1"
 
-$version="v0.11.0-jimis3"
+$version="v0.15.0"
 $cpu_arch = Get-CpuArchitecture
 switch ($cpu_arch) {
     arm64 {
         $arch="aarch64-pc-windows-msvc"
-        $sha1="be429b6c33da9408bba827815d04fceeadf6dbd1"
+        $sha="f4f304dc9dd9bd2f9b0032a0091efac1c093934bb095f207381558f80c3d0a24"
         break
     }
     x64 {
         $arch="x86_64-pc-windows-msvc"
-        $sha1="bcce35f6b39e2d1d0829f2277fd749767e057486"
+        $sha="b0b257a164bf438b2dea134ca7ded41c100f59a64b3bf275a202f1e8102ab217"
         break
     }
     x86 {
         $arch="x86-pc-windows-gnu"
-        $sha1="287f4c3b7db21b72138704b8fe96827e6b1643a8"
+        $sha="287f4c3b7db21b72138704b8fe96827e6b1643a8"
         $version="0.2.13-alpha-0"
         break
     }
@@ -40,7 +40,7 @@ $targetFolder = "C:\Program Files\"
 
 Write-Host "Downloading sccache $version..."
 Download $urlOfficial $urlCache $tempfile
-Verify-Checksum $tempfile $sha1
+Verify-Checksum $tempfile $sha
 Write-Host "Extracting $tempfile to $targetFolder..."
 Extract-tar_gz $tempfile $targetFolder
 Remove-Item -Path $tempfile
@@ -53,6 +53,8 @@ Set-EnvironmentVariable "SCCACHE_IGNORE_SERVER_IO_ERROR" "1"
 
 # add sccache to PATH
 Set-EnvironmentVariable "PATH" "C:\Program Files\$basename\;$([Environment]::GetEnvironmentVariable('PATH', 'Machine'))"
+# Enable a local preprocessor cache.
+Set-EnvironmentVariable "SCCACHE_DIRECT" "1"
 
 # update versions
 Write-Output "sccache = $version" >> ~\versions.txt