diff --git a/spec/language-mode-spec.coffee b/spec/language-mode-spec.coffee
index f6f0ebdd7..91ecd5cd9 100644
--- a/spec/language-mode-spec.coffee
+++ b/spec/language-mode-spec.coffee
@@ -14,6 +14,10 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-javascript')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-javascript')
+      atom.packages.unloadPackage('language-javascript')
+
     describe ".minIndentLevelForRowRange(startRow, endRow)", ->
       it "returns the minimum indent level for the given row range", ->
         expect(languageMode.minIndentLevelForRowRange(4, 7)).toBe 2
@@ -149,6 +153,10 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-coffee-script')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-coffee-script')
+      atom.packages.unloadPackage('language-coffee-script')
+
     describe ".toggleLineCommentsForBufferRows(start, end)", ->
       it "comments/uncomments lines in the given range", ->
         languageMode.toggleLineCommentsForBufferRows(4, 6)
@@ -200,6 +208,10 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-css')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-css')
+      atom.packages.unloadPackage('language-css')
+
     describe ".toggleLineCommentsForBufferRows(start, end)", ->
       it "comments/uncomments lines in the given range", ->
         languageMode.toggleLineCommentsForBufferRows(0, 1)
@@ -248,6 +260,13 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-css')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-less')
+      atom.packages.unloadPackage('language-less')
+
+      atom.packages.deactivatePackage('language-css')
+      atom.packages.unloadPackage('language-css')
+
     describe "when commenting lines", ->
       it "only uses the `commentEnd` pattern if it comes from the same grammar as the `commentStart`", ->
         languageMode.toggleLineCommentsForBufferRows(0, 0)
@@ -264,6 +283,10 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-xml')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-xml')
+      atom.packages.unloadPackage('language-xml')
+
     describe "when uncommenting lines", ->
       it "removes the leading whitespace from the comment end pattern match", ->
         languageMode.toggleLineCommentsForBufferRows(0, 0)
@@ -279,6 +302,10 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-javascript')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-javascript')
+      atom.packages.unloadPackage('language-javascript')
+
     it "maintains cursor buffer position when a folding/unfolding", ->
       editor.setCursorBufferPosition([5,5])
       languageMode.foldAll()
@@ -366,6 +393,10 @@ describe "LanguageMode", ->
       waitsForPromise ->
         atom.packages.activatePackage('language-javascript')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-javascript')
+      atom.packages.unloadPackage('language-javascript')
+
     describe ".unfoldAll()", ->
       it "unfolds every folded line", ->
         initialScreenLineCount = editor.getScreenLineCount()
@@ -435,6 +466,13 @@ describe "LanguageMode", ->
         atom.packages.activatePackage('language-source')
         atom.packages.activatePackage('language-css')
 
+    afterEach ->
+      atom.packages.deactivatePackage('language-source')
+      atom.packages.unloadPackage('language-source')
+
+      atom.packages.deactivatePackage('language-css')
+      atom.packages.unloadPackage('language-css')
+
     describe "suggestedIndentForBufferRow", ->
       it "does not return negative values (regression)", ->
         editor.setText('.test {\npadding: 0;\n}')