diff --git a/Makefile.win b/Makefile.win
index b81bd87df72..87db5952f12 100644
--- a/Makefile.win
+++ b/Makefile.win
@@ -17,8 +17,9 @@
 include version.mk
 
 SHELL=cmd.exe
-REBAR=bin\rebar.cmd
-ERLFMT=bin/erlfmt
+REBAR?=$(CURDIR)\bin\rebar.cmd
+PYTHON=python.exe
+ERLFMT?=$(CURDIR)\bin\erlfmt.cmd
 MAKE=make -f Makefile.win
 # REBAR?=$(shell where rebar.cmd)
 
@@ -77,7 +78,8 @@ DESTDIR=
 
 # Rebar options
 apps=
-skip_deps=folsom,meck,mochiweb,proper,bcrypt,hyper
+skip_deps=folsom,meck,mochiweb,proper,bcrypt,hyper,ibrowse,local
+
 suites=
 tests=
 
@@ -173,29 +175,31 @@ just-eunit: export ERL_AFLAGS = "-config $(shell echo %cd%)/rel/files/eunit.conf
 just-eunit:
 	@$(REBAR) -r eunit $(EUNIT_OPTS)
 
+erlfmt-check: export ERLFMT_PATH := $(ERLFMT)
 erlfmt-check:
-	ERLFMT_PATH=bin\erlfmt python3 dev\format_check.py
+	@$(PYTHON) dev\format_check.py
 
+erlfmt-format: export ERLFMT_PATH := $(ERLFMT)
 erlfmt-format:
-	ERLFMT_PATH=bin\erlfmt python3 dev\format_all.py
+	@$(PYTHON) dev\format_all.py
 
 .venv/bin/black:
-	@python.exe -m venv .venv
+	@$(PYTHON) -m venv .venv
 	@.venv\Scripts\pip3.exe install black || copy /b .venv\Scripts\black.exe +,,
 
 # Python code formatter - only runs if we're on Python 3.6 or greater
 python-black: .venv/bin/black
-	@python.exe -c "import sys; exit(1 if sys.version_info < (3,6) else 0)" || \
+	@$(PYTHON) -c "import sys; exit(1 if sys.version_info < (3,6) else 0)" || \
 		echo 'Python formatter not supported on Python < 3.6; check results on a newer platform'
-	@python.exe -c "import sys; exit(1 if sys.version_info >= (3,6) else 0)" || \
+	@$(PYTHON) -c "import sys; exit(1 if sys.version_info >= (3,6) else 0)" || \
 		.venv\Scripts\black.exe --check \
 		--exclude="build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/|src/erlfmt|src/rebar/pr2relnotes.py|src/fauxton" \
 		build-aux dev\run dev\format_*.py src\mango\test src\docs\src\conf.py src\docs\ext .
 
 python-black-update: .venv/bin/black
-	@python.exe -c "import sys; exit(1 if sys.version_info < (3,6) else 0)" || \
+	@$(PYTHON) -c "import sys; exit(1 if sys.version_info < (3,6) else 0)" || \
 		echo 'Python formatter not supported on Python < 3.6; check results on a newer platform'
-	@python.exe -c "import sys; exit(1 if sys.version_info >= (3,6) else 0)" || \
+	@$(PYTHON) -c "import sys; exit(1 if sys.version_info >= (3,6) else 0)" || \
 		.venv\Scripts\black.exe \
 		--exclude="build/|buck-out/|dist/|_build/|\.git/|\.hg/|\.mypy_cache/|\.nox/|\.tox/|\.venv/|src/erlfmt|src/rebar/pr2relnotes.py|src/fauxton" \
 		build-aux dev\run dev\format_*.py src\mango\test src\docs\src\conf.py src\docs\ext .
diff --git a/configure.ps1 b/configure.ps1
index f66c0d8df33..54c63776e7c 100644
--- a/configure.ps1
+++ b/configure.ps1
@@ -186,6 +186,12 @@ $ConfigERL = @"
 "@
 $ConfigERL | Out-File "$rootdir\config.erl" -encoding ascii
 
+if (((Get-Command "rebar.cmd" -ErrorAction SilentlyContinue) -eq $null) -or
+    ((Get-Command "rebar3.cmd" -ErrorAction SilentlyContinue) -eq $null) -or
+    ((Get-Command "erlfmt.cmd" -ErrorAction SilentlyContinue) -eq $null)) {
+  $env:Path += ";$rootdir\bin"
+}
+
 # check for rebar; if not found, build it and add it to our path
 if ((Get-Command "rebar.cmd" -ErrorAction SilentlyContinue) -eq $null)
 {
@@ -198,7 +204,39 @@ if ((Get-Command "rebar.cmd" -ErrorAction SilentlyContinue) -eq $null)
    cp $rootdir\src\rebar\rebar $rootdir\bin\rebar
    cp $rootdir\src\rebar\rebar.cmd $rootdir\bin\rebar.cmd
    make -C $rootdir\src\rebar clean
-   $env:Path += ";$rootdir\bin"
+}
+
+# check for rebar3; if not found, build it and add it to our path
+if ((Get-Command "rebar3.cmd" -ErrorAction SilentlyContinue) -eq $null)
+{
+   Write-Verbose "==> rebar3.cmd not found; bootstrapping..."
+   if (-Not (Test-Path "src\rebar3"))
+   {
+      git clone --depth 1 https://github.com/erlang/rebar3.git $rootdir\src\rebar3
+   }
+   cd src\rebar3
+   .\bootstrap.ps1
+   cp $rootdir\src\rebar3\rebar3 $rootdir\bin\rebar3
+   cp $rootdir\src\rebar3\rebar3.cmd $rootdir\bin\rebar3.cmd
+   cp $rootdir\src\rebar3\rebar3.ps1 $rootdir\bin\rebar3.ps1
+   make -C $rootdir\src\rebar3 clean
+   cd ..\..
+}
+
+# check for erlfmt; if not found, build it and add it to our path
+if ((Get-Command "erlfmt.cmd" -ErrorAction SilentlyContinue) -eq $null)
+{
+   Write-Verbose "==> erlfmt.cmd not found; bootstrapping..."
+   if (-Not (Test-Path "src\erlfmt"))
+   {
+      git clone --depth 1 https://github.com/WhatsApp/erlfmt.git $rootdir\src\erlfmt
+   }
+   cd src\erlfmt
+   rebar3 as release escriptize
+   cp $rootdir\src\erlfmt\_build\release\bin\erlfmt $rootdir\bin\erlfmt
+   cp $rootdir\src\erlfmt\_build\release\bin\erlfmt.cmd $rootdir\bin\erlfmt.cmd
+   make -C $rootdir\src\erlfmt clean
+   cd ..\..
 }
 
 # only update dependencies, when we are not in a release tarball
diff --git a/rebar.config.script b/rebar.config.script
index 4c3565e547f..5cd6a720830 100644
--- a/rebar.config.script
+++ b/rebar.config.script
@@ -153,7 +153,7 @@ DepDescs = [
 {hyper,            "hyper",            {tag, "CouchDB-2.2.0-7"}},
 {ibrowse,          "ibrowse",          {tag, "CouchDB-4.4.2-5"}},
 {jaeger_passage,   "jaeger-passage",   {tag, "CouchDB-0.1.14-4"}},
-{jiffy,            "jiffy",            {tag, "CouchDB-1.0.5-1"}},
+{jiffy,            "jiffy",            {tag, "CouchDB-1.0.9-1"}},
 {local,            "local",            {tag, "0.2.1"}},
 {mochiweb,         "mochiweb",         {tag, "CouchDB-v2.21.0-1"}},
 {meck,             "meck",             {tag, "0.9.2"}},
diff --git a/src/ebtree/rebar.config b/src/ebtree/rebar.config
index edf6725c881..ca39a1d872c 100644
--- a/src/ebtree/rebar.config
+++ b/src/ebtree/rebar.config
@@ -13,5 +13,5 @@
 {erl_opts, [debug_info]}.
 {cover_enabled, true}.
 {deps, [
-  {erlfdb, ".*", {git, "https://github.com/apache/couchdb-erlfdb", {tag, "v1.2.2"}}}
+  {erlfdb, ".*", {git, "https://github.com/apache/couchdb-erlfdb", {tag, "v1.3.4"}}}
 ]}.