diff --git a/ci/install-dependencies.sh b/ci/install-dependencies.sh
index dbcebad2fb..107757a1fe 100755
--- a/ci/install-dependencies.sh
+++ b/ci/install-dependencies.sh
@@ -5,7 +5,7 @@
 
 . ${0%/*}/lib.sh
 
-P4WHENCE=http://filehost.perforce.com/perforce/r$LINUX_P4_VERSION
+P4WHENCE=https://cdist2.perforce.com/perforce/r$LINUX_P4_VERSION
 LFSWHENCE=https://github.com/github/git-lfs/releases/download/v$LINUX_GIT_LFS_VERSION
 UBUNTU_COMMON_PKGS="make libssl-dev libcurl4-openssl-dev libexpat-dev
  tcl tk gettext zlib1g-dev perl-modules liberror-perl libauthen-sasl-perl
@@ -37,13 +37,15 @@ macos-latest)
 	test -z "$BREW_INSTALL_PACKAGES" ||
 	brew install $BREW_INSTALL_PACKAGES
 	brew link --force gettext
-	brew install --cask --no-quarantine perforce || {
-		# Update the definitions and try again
-		cask_repo="$(brew --repository)"/Library/Taps/homebrew/homebrew-cask &&
-		git -C "$cask_repo" pull --no-stat --ff-only &&
-		brew install --cask --no-quarantine perforce
-	} ||
-	brew install homebrew/cask/perforce
+	mkdir -p $HOME/bin
+	(
+		cd $HOME/bin
+		wget -q "https://cdist2.perforce.com/perforce/r21.2/bin.macosx1015x86_64/helix-core-server.tgz" &&
+		tar -xf helix-core-server.tgz &&
+		sudo xattr -d com.apple.quarantine p4 p4d 2>/dev/null || true
+	)
+	PATH="$PATH:${HOME}/bin"
+	export PATH
 
 	if test -n "$CC_PACKAGE"
 	then
@@ -78,15 +80,19 @@ linux-gcc-default)
 	;;
 esac
 
-if type p4d >/dev/null && type p4 >/dev/null
+if type p4d >/dev/null 2>&1 && type p4 >/dev/null 2>&1
 then
 	echo "$(tput setaf 6)Perforce Server Version$(tput sgr0)"
 	p4d -V | grep Rev.
 	echo "$(tput setaf 6)Perforce Client Version$(tput sgr0)"
 	p4 -V | grep Rev.
+else
+	echo >&2 "WARNING: perforce wasn't installed, see above for clues why"
 fi
-if type git-lfs >/dev/null
+if type git-lfs >/dev/null 2>&1
 then
 	echo "$(tput setaf 6)Git-LFS Version$(tput sgr0)"
 	git-lfs version
+else
+	echo >&2 "WARNING: git-lfs wasn't installed, see above for clues why"
 fi