diff --git a/Makefile b/Makefile
index 43dcf1f..2d82467 100644
--- a/Makefile
+++ b/Makefile
@@ -56,7 +56,7 @@ piprot: ## Check for outdated dependencies
 mutmut: clean ## Run mutation tests
 	tox -e mutmut run
 	tox -e mutmut html
-	open open html/index.html
+	open html/index.html
 
 .PHONY: docs
 docs:  ## Generate documentation
diff --git a/setup.py b/setup.py
index 7bc8794..ff971d4 100644
--- a/setup.py
+++ b/setup.py
@@ -48,12 +48,12 @@
     ],
     python_requires=">=3.7 ",
     install_requires=[
-        "beautifulsoup4~=4.0",
-        "brunns-row~=2.0",
-        "Deprecated~=1.2",
-        "furl~=2.0",
-        "pyhamcrest~=2.0",
-        "requests~=2.0",
-        "typing-extensions~=3.7 ; python_version<'3.8'",
+        "beautifulsoup4>=4.0",
+        "brunns-row>=2.0",
+        "Deprecated>=1.2",
+        "furl>=2.0",
+        "pyhamcrest>=2.0",
+        "requests>=2.0",
+        "typing-extensions>=3.7 ; python_version<'3.8'",
     ],
 )