diff --git a/exercises/practice/allergies/.meta/config.json b/exercises/practice/allergies/.meta/config.json
index c664aad5e..3e7889327 100644
--- a/exercises/practice/allergies/.meta/config.json
+++ b/exercises/practice/allergies/.meta/config.json
@@ -25,7 +25,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
   "source_url": "https://www.turing.edu/"
 }
diff --git a/exercises/practice/bob/.meta/config.json b/exercises/practice/bob/.meta/config.json
index 677bc4ef6..2e9a30525 100644
--- a/exercises/practice/bob/.meta/config.json
+++ b/exercises/practice/bob/.meta/config.json
@@ -28,7 +28,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Inspired by the 'Deaf Grandma' exercise in Chris Pine's Learn to Program tutorial.",
   "source_url": "https://pine.fm/LearnToProgram/chap_06.html"
 }
diff --git a/exercises/practice/etl/.meta/config.json b/exercises/practice/etl/.meta/config.json
index 88889773d..e855e6e2b 100644
--- a/exercises/practice/etl/.meta/config.json
+++ b/exercises/practice/etl/.meta/config.json
@@ -26,7 +26,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Based on an exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
   "source_url": "https://www.turing.edu/"
 }
diff --git a/exercises/practice/gigasecond/.meta/config.json b/exercises/practice/gigasecond/.meta/config.json
index 68f6f937a..e492f355f 100644
--- a/exercises/practice/gigasecond/.meta/config.json
+++ b/exercises/practice/gigasecond/.meta/config.json
@@ -26,7 +26,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Chapter 9 in Chris Pine's online Learn to Program tutorial.",
   "source_url": "https://pine.fm/LearnToProgram/chap_09.html"
 }
diff --git a/exercises/practice/kindergarten-garden/.meta/config.json b/exercises/practice/kindergarten-garden/.meta/config.json
index 5d813bf3c..14243c2ef 100644
--- a/exercises/practice/kindergarten-garden/.meta/config.json
+++ b/exercises/practice/kindergarten-garden/.meta/config.json
@@ -26,7 +26,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
   "source_url": "https://www.turing.edu/"
 }
diff --git a/exercises/practice/matrix/.meta/config.json b/exercises/practice/matrix/.meta/config.json
index 3ee063b08..1ee5addfa 100644
--- a/exercises/practice/matrix/.meta/config.json
+++ b/exercises/practice/matrix/.meta/config.json
@@ -25,7 +25,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
   "source_url": "https://www.turing.edu/"
 }
diff --git a/exercises/practice/phone-number/.meta/config.json b/exercises/practice/phone-number/.meta/config.json
index 46b7e00f9..4bb7df12b 100644
--- a/exercises/practice/phone-number/.meta/config.json
+++ b/exercises/practice/phone-number/.meta/config.json
@@ -27,7 +27,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Exercise by the JumpstartLab team for students at The Turing School of Software and Design.",
   "source_url": "https://www.turing.edu/"
 }
diff --git a/exercises/practice/pig-latin/.meta/config.json b/exercises/practice/pig-latin/.meta/config.json
index 67ba706bc..379a80b4a 100644
--- a/exercises/practice/pig-latin/.meta/config.json
+++ b/exercises/practice/pig-latin/.meta/config.json
@@ -25,7 +25,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "The Pig Latin exercise at Test First Teaching by Ultrasaurus",
   "source_url": "https://github.com/ultrasaurus/test-first-teaching/tree/master/learn_ruby/pig_latin"
 }
diff --git a/exercises/practice/reverse-string/.meta/config.json b/exercises/practice/reverse-string/.meta/config.json
index da86895a4..f27587e10 100644
--- a/exercises/practice/reverse-string/.meta/config.json
+++ b/exercises/practice/reverse-string/.meta/config.json
@@ -25,7 +25,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Introductory challenge to reverse an input string",
   "source_url": "https://www.freecodecamp.org/news/how-to-reverse-a-string-in-javascript-in-3-different-ways-75e4763c68cb"
 }
diff --git a/exercises/practice/simple-cipher/.meta/config.json b/exercises/practice/simple-cipher/.meta/config.json
index 760702321..4ee402031 100644
--- a/exercises/practice/simple-cipher/.meta/config.json
+++ b/exercises/practice/simple-cipher/.meta/config.json
@@ -28,7 +28,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Substitution Cipher at Wikipedia",
   "source_url": "https://en.wikipedia.org/wiki/Substitution_cipher"
 }
diff --git a/exercises/practice/space-age/.meta/config.json b/exercises/practice/space-age/.meta/config.json
index 635dcf46d..02505cb42 100644
--- a/exercises/practice/space-age/.meta/config.json
+++ b/exercises/practice/space-age/.meta/config.json
@@ -25,7 +25,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "Partially inspired by Chapter 1 in Chris Pine's online Learn to Program tutorial.",
   "source_url": "https://pine.fm/LearnToProgram/chap_01.html"
 }
diff --git a/exercises/practice/triangle/.meta/config.json b/exercises/practice/triangle/.meta/config.json
index 5ae6768e6..7468df815 100644
--- a/exercises/practice/triangle/.meta/config.json
+++ b/exercises/practice/triangle/.meta/config.json
@@ -25,7 +25,7 @@
     "flag.tests.includes-optional": false,
     "flag.tests.jest": true,
     "flag.tests.tstyche": false
-  }
+  },
   "source": "The Ruby Koans triangle project, parts 1 & 2",
   "source_url": "https://www.rubykoans.com/"
 }