diff --git a/depends/install_webp.sh b/depends/install_webp.sh
index 08507ede6f5..356c6e5525b 100755
--- a/depends/install_webp.sh
+++ b/depends/install_webp.sh
@@ -1,14 +1,14 @@
 #!/bin/bash
 # install webp
 
-if [ ! -f libwebp-0.5.0.tar.gz ]; then
-    wget -O 'libwebp-0.5.0.tar.gz' 'https://github.com/python-pillow/pillow-depends/blob/master/libwebp-0.5.0.tar.gz?raw=true'
+if [ ! -f libwebp-0.5.1.tar.gz ]; then
+    wget -O 'libwebp-0.5.1.tar.gz' 'https://github.com/python-pillow/pillow-depends/blob/master/libwebp-0.5.1.tar.gz?raw=true'
 fi
 
-rm -r libwebp-0.5.0
-tar -xvzf libwebp-0.5.0.tar.gz
+rm -r libwebp-0.5.1
+tar -xvzf libwebp-0.5.1.tar.gz
 
-pushd libwebp-0.5.0
+pushd libwebp-0.5.1
 
 ./configure --prefix=/usr --enable-libwebpmux --enable-libwebpdemux && make -j4 && sudo make -j4 install
 
diff --git a/winbuild/config.py b/winbuild/config.py
index 1b5d5e380d9..7790caf4a53 100644
--- a/winbuild/config.py
+++ b/winbuild/config.py
@@ -75,10 +75,10 @@
         'version': '8.6.5',
     },
     'webp': {
-        'url': 'http://downloads.webmproject.org/releases/webp/libwebp-0.5.0.tar.gz',
-        'filename': PILLOW_DEPENDS_DIR + 'libwebp-0.5.0.tar.gz',
-        'hash': 'sha1:d3de815b272fcf88fc4f2dc1ab65d176bcb8df68',
-        'dir': 'libwebp-0.5.0',
+        'url': 'http://downloads.webmproject.org/releases/webp/libwebp-0.5.1.tar.gz',
+        'filename': PILLOW_DEPENDS_DIR + 'libwebp-0.5.1.tar.gz',
+        'hash': 'sha1:66efb2213015ad3460bef64b4fb218fdc10ce83f',
+        'dir': 'libwebp-0.5.1',
     },
     'openjpeg': {
         'url': SF_MIRROR+'/project/openjpeg/openjpeg/2.1.0/openjpeg-2.1.0.tar.gz',