diff --git a/src/main/java/pl/edu/uwb/ii/sdfeater/File.java b/src/main/java/pl/edu/uwb/ii/sdfeater/File.java
index de660b7..5ea8961 100644
--- a/src/main/java/pl/edu/uwb/ii/sdfeater/File.java
+++ b/src/main/java/pl/edu/uwb/ii/sdfeater/File.java
@@ -101,7 +101,7 @@ void parse(Molecule molecule, SDFEater.Format format, SDFEater.Subject subject)
                             "        \"chemical compounds\"\n" +
                             "      ],\n" +
                             "      \"http://schema.org/license\": {\n" +
-                            "        \"@id\": \"http://opendatacommons.org/licenses/pddl/1.0/\"\n" +
+                            "        \"@id\": \"https://creativecommons.org/licenses/by/3.0/\"\n" +
                             "      },\n" +
                             "      \"http://schema.org/name\": \"Molecules\",\n" +
                             "      \"http://schema.org/creator\": {\n" +
@@ -133,7 +133,7 @@ void parse(Molecule molecule, SDFEater.Format format, SDFEater.Subject subject)
                                     "        \"chemical compounds\"\n" +
                                     "      ],\n" +
                                     "      \"http://schema.org/license\": {\n" +
-                                    "        \"@id\": \"http://opendatacommons.org/licenses/pddl/1.0/\"\n" +
+                                    "        \"@id\": \"https://creativecommons.org/licenses/by/3.0/\"\n" +
                                     "      },\n" +
                                     "      \"http://schema.org/name\": \"Molecules\",\n" +
                                     "      \"http://schema.org/creator\": {\n" +
@@ -162,7 +162,7 @@ void parse(Molecule molecule, SDFEater.Format format, SDFEater.Subject subject)
                             "      <div property='schema:keywords' content='chemical compounds'></div>\n" +
                             "      <div property='schema:temporal' content='" + Year.now().toString() + "'></div>\n" +
                             "      <div property='schema:name' content='Molecules'></div>\n" +
-                            "      <div rel='schema:license' resource='http://opendatacommons.org/licenses/pddl/1.0/'></div>\n" +
+                            "      <div rel='schema:license' resource='https://creativecommons.org/licenses/by/3.0/'></div>\n" +
                             "      <div property='schema:description' content='This is a dataset of molecules generated by SDFEater.'></div>\n" +
                             "      <div rel='schema:about' resource='https://github.com/lszeremeta/SDFEater'></div>\n" +
                             "      <div property='schema:url' content='https://github.com/lszeremeta/SDFEater'></div>\n" +
@@ -187,7 +187,7 @@ void parse(Molecule molecule, SDFEater.Format format, SDFEater.Subject subject)
                             "      <div itemprop='creator' itemscope itemtype='http://schema.org/Organization'>\n" +
                             "        <div itemprop='name' content='SDFEater'></div>\n" +
                             "      </div>\n" +
-                            "      <div itemprop='license' content='http://opendatacommons.org/licenses/pddl/1.0/'></div>\n" +
+                            "      <div itemprop='license' content='https://creativecommons.org/licenses/by/3.0/'></div>\n" +
                             "    </div>");
                     break;
                 default: