diff --git a/experimental/babel-preset-env/src/targets-parser.js b/experimental/babel-preset-env/src/targets-parser.js
index 3a1096a1d4..2d1eea2c86 100644
--- a/experimental/babel-preset-env/src/targets-parser.js
+++ b/experimental/babel-preset-env/src/targets-parser.js
@@ -103,17 +103,7 @@ const getTargets = (targets = {}) => {
         const [parsedTarget, parsedValue] = parser(target, value);
 
         if (parsedValue) {
-          // Merge (lowest wins)
-          if (typeof parsedValue === "string") {
-            results.targets[parsedTarget] = semverMin(
-              results.targets[parsedTarget],
-              parsedValue,
-            );
-          } else {
-            // We can remove this block if/when we replace Uglify target
-            // with top level option
-            results.targets[parsedTarget] = parsedValue;
-          }
+          results.targets[parsedTarget] = parsedValue;
         }
       }
 
diff --git a/experimental/babel-preset-env/test/targets-parser.spec.js b/experimental/babel-preset-env/test/targets-parser.spec.js
index ff569174b7..891602cec1 100644
--- a/experimental/babel-preset-env/test/targets-parser.spec.js
+++ b/experimental/babel-preset-env/test/targets-parser.spec.js
@@ -32,7 +32,7 @@ describe("getTargets", () => {
         }),
         {
           chrome: "49.0.0",
-          firefox: "51.0.0",
+          firefox: "55.0.0",
           ie: "9.0.0",
           safari: "9.0.0",
         },