diff --git a/defaults/main.yml b/defaults/main.yml
index 82e573e..e00c134 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,6 +1,6 @@
 ---
 boost_version: 1.72.0
-zlib_version: 1.2.13
+zlib_version: 1.3
 bzip2_version: 1.0.8
 
 # Corporate feature: toggles desired state
diff --git a/molecule/clang/tests/test_boost.yml b/molecule/clang/tests/test_boost.yml
index c8d548c..b78069f 100644
--- a/molecule/clang/tests/test_boost.yml
+++ b/molecule/clang/tests/test_boost.yml
@@ -11,7 +11,7 @@ file:
     exists: true
   /usr/local/src/bzip2-1.0.8/bzip2.c:
     exists: true
-  /usr/local/src/zlib-1.2.13/compress.c:
+  /usr/local/src/zlib-1.3/compress.c:
     exists: true
-  /usr/local/src/zlib-1.2.13/zlib.h:
+  /usr/local/src/zlib-1.3/zlib.h:
     exists: true
diff --git a/molecule/default/tests/test_boost.yml b/molecule/default/tests/test_boost.yml
index c8d548c..b78069f 100644
--- a/molecule/default/tests/test_boost.yml
+++ b/molecule/default/tests/test_boost.yml
@@ -11,7 +11,7 @@ file:
     exists: true
   /usr/local/src/bzip2-1.0.8/bzip2.c:
     exists: true
-  /usr/local/src/zlib-1.2.13/compress.c:
+  /usr/local/src/zlib-1.3/compress.c:
     exists: true
-  /usr/local/src/zlib-1.2.13/zlib.h:
+  /usr/local/src/zlib-1.3/zlib.h:
     exists: true