diff --git a/.github/workflows/build-test.yml b/.github/workflows/build-test.yml
index 027045ee4..e448aeccf 100644
--- a/.github/workflows/build-test.yml
+++ b/.github/workflows/build-test.yml
@@ -9,6 +9,9 @@ on:
 jobs:
   build-tests:
     name:                       Test and Build
+    env:
+      SCCACHE_CACHE_SIZE:       "1G"
+      SCCACHE_IDLE_TIMEOUT:     0
     strategy:
       matrix:
         platform:
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 1fecb17a9..799b4b03b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -10,6 +10,9 @@ on:
 jobs:
   build:
     name:                       Build Release
+    env:
+      SCCACHE_CACHE_SIZE:       "1G"
+      SCCACHE_IDLE_TIMEOUT:     0
     strategy:
       matrix:
         platform:
@@ -89,4 +92,4 @@ jobs:
           path:                 artifacts/
       - name:                   Prepare build directory for cache
         shell: bash
-        run:                    bash scripts/actions/clean-target.sh
\ No newline at end of file
+        run:                    bash scripts/actions/clean-target.sh
diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index b19b2e780..c0b3403c2 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -10,6 +10,9 @@ jobs:
   check:
     name:                       Check
     runs-on:                    ubuntu-16.04
+    env:
+      SCCACHE_CACHE_SIZE:       "1G"
+      SCCACHE_IDLE_TIMEOUT:     0    
     steps:
       - name:                   Checkout sources
         uses:                   actions/checkout@master
diff --git a/ethcore/res/ethereum/tests b/ethcore/res/ethereum/tests
index 06acfb48a..d4f86ecf4 160000
--- a/ethcore/res/ethereum/tests
+++ b/ethcore/res/ethereum/tests
@@ -1 +1 @@
-Subproject commit 06acfb48aee71ecb57a9ca991cf0f57b630e3469
+Subproject commit d4f86ecf4aa7c44a40bc0c972fd3e25d63ef5d92
diff --git a/scripts/actions/build-windows.sh b/scripts/actions/build-windows.sh
index e3ed6bfe9..c32bb0b91 100755
--- a/scripts/actions/build-windows.sh
+++ b/scripts/actions/build-windows.sh
@@ -1,9 +1,8 @@
 #!/bin/bash
 set -e # fail on any error
 set -u # treat unset variables as error
-
-  # NOTE: Enables the aes-ni instructions for RustCrypto dependency.
-  # If you change this please remember to also update .cargo/config
+# NOTE: Enables the aes-ni instructions for RustCrypto dependency.
+# If you change this please remember to also update .cargo/config
 export RUSTFLAGS=" -Ctarget-feature=+aes,+sse2,+ssse3 -Ctarget-feature=+crt-static  -Clink-arg=-s"
 
 echo "_____ Build OpenEthereum and tools _____"
diff --git a/scripts/actions/install-sccache.ps1 b/scripts/actions/install-sccache.ps1
index eff586c43..b170f473d 100755
--- a/scripts/actions/install-sccache.ps1
+++ b/scripts/actions/install-sccache.ps1
@@ -1,7 +1,5 @@
 #!/usr/bin/env pwsh
 $os=$args[0]
-$SCCACHE_CACHE_SIZE="1G"
-$SCCACHE_IDLE_TIMEOUT=0
 $version="0.2.12"
 echo "Current OS:" $os
 switch ($os){