diff --git a/packages/ctl/src/commands.js b/packages/ctl/src/commands.js
index 6173e808..354a6460 100644
--- a/packages/ctl/src/commands.js
+++ b/packages/ctl/src/commands.js
@@ -991,8 +991,8 @@ modPackCommands.add(new libCommand.Command({
 		modPack.name = args.name;
 		if (args.description) { modPack.description = args.description; }
 		if (args.factorioVersion) {
-			if (!/^\d+\.\d+(\.\d+)?$/.test(args.factorioVersion)) {
-				throw new libErrors.CommandError("factorio-version must match the format digit.digit[.digit]");
+			if (!/^\d+\.\d+\.\d+?$/.test(args.factorioVersion)) {
+				throw new libErrors.CommandError("factorio-version must match the format digit.digit.digit");
 			}
 			modPack.factorioVersion = args.factorioVersion;
 		}
@@ -1031,8 +1031,8 @@ modPackCommands.add(new libCommand.Command({
 		if (args.name) { modPack.name = args.name; }
 		if (args.description) { modPack.description = args.description; }
 		if (args.factorioVersion) {
-			if (!/^\d+\.\d+(\.\d+)?$/.test(args.factorioVersion)) {
-				throw new libErrors.CommandError("factorio-version must match the format digit.digit[.digit]");
+			if (!/^\d+\.\d+\.\d+?$/.test(args.factorioVersion)) {
+				throw new libErrors.CommandError("factorio-version must match the format digit.digit.digit");
 			}
 			modPack.factorioVersion = args.factorioVersion;
 		}
diff --git a/packages/web_ui/src/components/ModPackViewPage.jsx b/packages/web_ui/src/components/ModPackViewPage.jsx
index 39264fe1..115560a3 100644
--- a/packages/web_ui/src/components/ModPackViewPage.jsx
+++ b/packages/web_ui/src/components/ModPackViewPage.jsx
@@ -620,8 +620,8 @@ export default function ModPackViewPage() {
 						name="factorioVersion"
 						style={{ marginBottom: 0 }}
 						rules={[{
-							pattern: /^\d+\.\d+(\.\d+)?$/,
-							message: "Must be an a.b or a.b.c version number..",
+							pattern: /^\d+\.\d+\.\d+?$/,
+							message: "Must be an a.b.c version number.",
 						}]}
 					>
 						<Input
diff --git a/test/integration/clusterio.js b/test/integration/clusterio.js
index 843248c3..b54d9390 100644
--- a/test/integration/clusterio.js
+++ b/test/integration/clusterio.js
@@ -823,13 +823,13 @@ describe("Integration of Clusterio", function() {
 
 		describe("mod-pack create", function() {
 			it("should create a mod-pack", async function() {
-				await execCtl("mod-pack create empty-pack 1.1");
+				await execCtl("mod-pack create empty-pack 1.1.0");
 				let response = await libLink.messages.listModPacks.send(getControl());
 				assert(response.list.some(modPack => modPack.name === "empty-pack"), "created pack is not in the list");
 			});
 			it("should allow setting all fields", async function() {
 				await execCtl(
-					"mod-pack create full-pack 0.17 " +
+					"mod-pack create full-pack 0.17.59 " +
 					"--description Description " +
 					"--mods empty_mod:1.0.0 " +
 					"--bool-setting startup MyBool true " +
@@ -844,7 +844,7 @@ describe("Integration of Clusterio", function() {
 				reference.id = modPack.id;
 				reference.name = "full-pack";
 				reference.description = "Description";
-				reference.factorioVersion = "0.17";
+				reference.factorioVersion = "0.17.59";
 				reference.mods.set("empty_mod", { name: "empty_mod", enabled: true, version: "1.0.0" });
 				reference.settings["startup"].set("MyBool", { value: true });
 				reference.settings["runtime-global"].set("MyInt", { value: 1235 });
@@ -868,11 +868,11 @@ describe("Integration of Clusterio", function() {
 
 		describe("mod-pack edit", function() {
 			it("runs", async function() {
-				await execCtl("mod-pack edit full-pack --factorio-version 1.2");
+				await execCtl("mod-pack edit full-pack --factorio-version 1.2.0");
 				let response = await libLink.messages.listModPacks.send(getControl());
 				let modPack = response.list.find(entry => entry.name === "full-pack");
 				assert(modPack, "created mod pack not found");
-				assert.equal(modPack.factorio_version, "1.2");
+				assert.equal(modPack.factorio_version, "1.2.0");
 			});
 		});