diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index b11c7b0..16a372d 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -28,8 +28,8 @@ env:
   ICONV_VERSION: '1.16'
   ICONV_HASH: 'e6a1b1b589654277ee790cce3734f07876ac4ccfaecbee8afa0b649cf529cc04'
   # zlib
-  ZLIB_VERSION: '1.3'
-  ZLIB_HASH: 'ff0ba4c292013dbc27530b3a81e1f9a813cd39de01ca5e0f8bf355702efa593e'
+  ZLIB_VERSION: '1.3.1'
+  ZLIB_HASH: '9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23'
   # OpenSSL
   OPENSSL_VERSION: '3.0.5'
   OPENSSL_HASH: 'aa7d8d9bef71ad6525c55ba11e5f4397889ce49c2c9349dcea6d3e4f0b024a7a'
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 4c1252d..da345d3 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -22,8 +22,8 @@ env:
   ICONV_VERSION: '1.16'
   ICONV_HASH: 'e6a1b1b589654277ee790cce3734f07876ac4ccfaecbee8afa0b649cf529cc04'
   # zlib
-  ZLIB_VERSION: '1.3'
-  ZLIB_HASH: 'ff0ba4c292013dbc27530b3a81e1f9a813cd39de01ca5e0f8bf355702efa593e'
+  ZLIB_VERSION: '1.3.1'
+  ZLIB_HASH: '9a93b2b7dfdac77ceba5a558a580e74667dd6fede4585b91eefb60f03b72df23'
   # OpenSSL
   OPENSSL_VERSION: '3.2.0'
   OPENSSL_HASH: '14c826f07c7e433706fb5c69fa9e25dab95684844b4c962a2cf1bf183eb4690e'