diff --git a/scripts/activate.sh b/scripts/activate.sh
index 72bd44738..284d3a13e 100755
--- a/scripts/activate.sh
+++ b/scripts/activate.sh
@@ -6,7 +6,11 @@ if [[ "$0" == "${BASH_SOURCE[0]}" ]]; then
     exit 1
 fi
 
-export PYAV_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.."; pwd)"
+if [[ -n "$ZSH_VERSION" ]]; then
+    export PYAV_ROOT="$(realpath -- "$(dirname -- "$(readlink -f -- "$0")")/..")"
+else
+    export PYAV_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.."; pwd)"
+fi
 
 if [[ ! "$PYAV_LIBRARY" ]]; then
     if [[ "$1" ]]; then
diff --git a/scripts/build-deps b/scripts/build-deps
index 9cc795305..4291140dd 100755
--- a/scripts/build-deps
+++ b/scripts/build-deps
@@ -47,7 +47,7 @@ cd "$PYAV_LIBRARY_ROOT"
 if [[ ! -d $PYAV_LIBRARY ]]; then
     url="https://ffmpeg.org/releases/$PYAV_LIBRARY.tar.gz"
     echo Downloading $url
-    wget --no-check-certificate "$url" || exit 1
+    curl "$url" --output ${PYAV_LIBRARY}.tar.gz || exit 1
     tar -xzf $PYAV_LIBRARY.tar.gz
     rm $PYAV_LIBRARY.tar.gz
     echo