diff --git a/.appveyor.yml b/.appveyor.yml
index 09fba1b92..1774aba98 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -26,9 +26,9 @@ build_script:
   - dir C:\mingw-w64
 
 test_script:
-  - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% V=0
+  - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM%
   - build\nimbus.exe --help
-  - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% V=0 NIMFLAGS="-d:release" test
+  - mingw32-make -j2 ARCH_OVERRIDE=%PLATFORM% test
   - IF "%PLATFORM%" == "x64" mingw32-make -j2 test-reproducibility
 
 deploy: off
diff --git a/.travis.yml b/.travis.yml
index d651eca68..bb506864a 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -33,9 +33,8 @@ install:
 
 script:
   - set -e # fail fast
-  - make -j${NPROC} V=0
+  - make -j${NPROC}
   - ./build/nimbus --help
-  - make -j${NPROC} V=0 NIMFLAGS="-d:release" test
-  - make -j${NPROC} V=0 test-reproducibility
-  - make -C vendor/nim-beacon-chain -j${NPROC} V=0 test
+  - make -j${NPROC} test test-reproducibility
+  - make -C vendor/nim-beacon-chain -j${NPROC} test
 
diff --git a/nimbus.nimble b/nimbus.nimble
index 96a387a8b..589916bb1 100644
--- a/nimbus.nimble
+++ b/nimbus.nimble
@@ -29,7 +29,7 @@ proc buildBinary(name: string, srcDir = "./", params = "", lang = "c") =
   exec "nim " & lang & " --out:./build/" & name & " " & extra_params & " " & srcDir & name & ".nim"
 
 proc test(name: string, lang = "c") =
-  buildBinary name, "tests/", "-r -d:chronicles_log_level=ERROR"
+  buildBinary name, "tests/", "-r -d:release -d:chronicles_log_level=ERROR"
 
 task test, "Run tests":
   test "all_tests"
diff --git a/vendor/nim-eth b/vendor/nim-eth
index dcb82f6a9..7954c0c7e 160000
--- a/vendor/nim-eth
+++ b/vendor/nim-eth
@@ -1 +1 @@
-Subproject commit dcb82f6a969e8c7783143a5a7676ce0c3503fb78
+Subproject commit 7954c0c7ed98be314ce023ebd7ecee0e926bf0c1
diff --git a/vendor/nim-faststreams b/vendor/nim-faststreams
index 464034d78..6e839bb5f 160000
--- a/vendor/nim-faststreams
+++ b/vendor/nim-faststreams
@@ -1 +1 @@
-Subproject commit 464034d780763b8b268a80b1cad79fdfe1a78109
+Subproject commit 6e839bb5fa3373d23b8358652ee15ed05574d22f