diff --git a/xExtension-CustomCSS/metadata.json b/xExtension-CustomCSS/metadata.json
index 84a79d5..5f35291 100644
--- a/xExtension-CustomCSS/metadata.json
+++ b/xExtension-CustomCSS/metadata.json
@@ -2,7 +2,7 @@
 	"name": "Custom CSS",
 	"author": "Marien Fressinaud",
 	"description": "Give possibility to overwrite the CSS with a user-specific rules.",
-	"version": 0.2,
+	"version": "0.2",
 	"entrypoint": "CustomCSS",
 	"type": "user"
 }
diff --git a/xExtension-CustomJS/metadata.json b/xExtension-CustomJS/metadata.json
index 10122db..b101d0e 100644
--- a/xExtension-CustomJS/metadata.json
+++ b/xExtension-CustomJS/metadata.json
@@ -2,7 +2,7 @@
 	"name": "Custom JS",
 	"author": "Frans de Jonge",
 	"description": "Apply custom JS.",
-	"version": 0.2,
+	"version": "0.2",
 	"entrypoint": "CustomJS",
 	"type": "user"
 }
diff --git a/xExtension-ImageProxy/metadata.json b/xExtension-ImageProxy/metadata.json
index 0eb908a..c184bb2 100644
--- a/xExtension-ImageProxy/metadata.json
+++ b/xExtension-ImageProxy/metadata.json
@@ -2,7 +2,7 @@
 	"name": "Image Proxy",
 	"author": "Frans de Jonge",
 	"description": "No insecure content warnings or disappearing images.",
-	"version": 0.5,
+	"version": "0.5",
 	"entrypoint": "ImageProxy",
 	"type": "user"
 }
diff --git a/xExtension-QuickCollapse/metadata.json b/xExtension-QuickCollapse/metadata.json
index b3fe974..c185629 100644
--- a/xExtension-QuickCollapse/metadata.json
+++ b/xExtension-QuickCollapse/metadata.json
@@ -2,7 +2,7 @@
 	"name": "Quick Collapse",
 	"author": "romibi and Marien Fressinaud",
 	"description": "Quickly change from folded to unfolded articles",
-	"version": 0.1.1,
+	"version": "0.1.1",
 	"entrypoint": "QuickCollapse",
 	"type": "user"
 }
diff --git a/xExtension-ReadingTime/metadata.json b/xExtension-ReadingTime/metadata.json
index 969f5d4..4d8b9d4 100644
--- a/xExtension-ReadingTime/metadata.json
+++ b/xExtension-ReadingTime/metadata.json
@@ -2,7 +2,7 @@
 	"name": "ReadingTime",
 	"author": "Lapineige",
 	"description": "Add a reading time estimation next to each article",
-	"version": 1.3.1,
+	"version": "1.3.1",
 	"entrypoint": "ReadingTime",
 	"type": "user"
 }
diff --git a/xExtension-ShareByEmail/metadata.json b/xExtension-ShareByEmail/metadata.json
index 0fadb36..3731a61 100644
--- a/xExtension-ShareByEmail/metadata.json
+++ b/xExtension-ShareByEmail/metadata.json
@@ -2,7 +2,7 @@
   "name": "Share By Email",
   "author": "Marien Fressinaud",
   "description": "Improve the sharing by email system.",
-  "version": 0.1,
+  "version": "0.1",
   "entrypoint": "ShareByEmail",
   "type": "user"
 }
diff --git a/xExtension-StickyFeeds/metadata.json b/xExtension-StickyFeeds/metadata.json
index 86a1f00..062a6a3 100644
--- a/xExtension-StickyFeeds/metadata.json
+++ b/xExtension-StickyFeeds/metadata.json
@@ -2,7 +2,7 @@
 	"name": "Sticky Feeds",
 	"author": "Marien Fressinaud",
 	"description": "Set the feed aside in the main stream following the window scroll.",
-	"version": 0.1.1,
+	"version": "0.1.1",
 	"entrypoint": "StickyFeeds",
 	"type": "user"
 }
diff --git a/xExtension-TTRSS_API/metadata.json b/xExtension-TTRSS_API/metadata.json
index 25c167e..4b7e286 100644
--- a/xExtension-TTRSS_API/metadata.json
+++ b/xExtension-TTRSS_API/metadata.json
@@ -2,7 +2,7 @@
 	"name": "TinyTinyRSS API",
 	"author": "Marien Fressinaud",
 	"description": "Provides an API compliant with TinyTinyRSS applications.",
-	"version": 0.1,
+	"version": "0.1",
 	"entrypoint": "TTRSS_API",
 	"type": "system"
 }
diff --git a/xExtension-TitleWrap/metadata.json b/xExtension-TitleWrap/metadata.json
index ab5c4c2..1141025 100644
--- a/xExtension-TitleWrap/metadata.json
+++ b/xExtension-TitleWrap/metadata.json
@@ -2,7 +2,7 @@
 	"name": "Title-Wrap",
 	"author": "₣rans de Jonge, Joris Kinable",
 	"description": "Applies a line-wrap to long article titles, as opposed to truncating the title when it overflows its display area.",
-	"version": 0.1,
+	"version": "0.1",
 	"entrypoint": "TitleWrap",
 	"type": "user"
 }
diff --git a/xExtension-showFeedID/metadata.json b/xExtension-showFeedID/metadata.json
index 78dd457..b34e766 100644
--- a/xExtension-showFeedID/metadata.json
+++ b/xExtension-showFeedID/metadata.json
@@ -2,7 +2,7 @@
 	"name": "ShowFeedID",
 	"author": "math-GH",
 	"description": "Show the feed ID",
-	"version": 0.1,
+	"version": "0.1",
 	"entrypoint": "ShowFeedID",
 	"type": "user"
 }