diff --git a/cirq-aqt/cirq_aqt/_version.py b/cirq-aqt/cirq_aqt/_version.py
index fcc89fab9ee..8a67e53352b 100644
--- a/cirq-aqt/cirq_aqt/_version.py
+++ b/cirq-aqt/cirq_aqt/_version.py
@@ -14,4 +14,4 @@
 
 """Define version number here, read it from setup.py automatically"""
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-core/cirq/_version.py b/cirq-core/cirq/_version.py
index a35cdd6bcf8..6d1b8f57a4a 100644
--- a/cirq-core/cirq/_version.py
+++ b/cirq-core/cirq/_version.py
@@ -29,4 +29,4 @@
         'of cirq (e.g. "python -m pip install cirq==1.1.*")'
     )
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-ft/cirq_ft/_version.py b/cirq-ft/cirq_ft/_version.py
index fcc89fab9ee..8a67e53352b 100644
--- a/cirq-ft/cirq_ft/_version.py
+++ b/cirq-ft/cirq_ft/_version.py
@@ -14,4 +14,4 @@
 
 """Define version number here, read it from setup.py automatically"""
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-google/cirq_google/_version.py b/cirq-google/cirq_google/_version.py
index a35cdd6bcf8..6d1b8f57a4a 100644
--- a/cirq-google/cirq_google/_version.py
+++ b/cirq-google/cirq_google/_version.py
@@ -29,4 +29,4 @@
         'of cirq (e.g. "python -m pip install cirq==1.1.*")'
     )
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-ionq/cirq_ionq/_version.py b/cirq-ionq/cirq_ionq/_version.py
index fcc89fab9ee..8a67e53352b 100644
--- a/cirq-ionq/cirq_ionq/_version.py
+++ b/cirq-ionq/cirq_ionq/_version.py
@@ -14,4 +14,4 @@
 
 """Define version number here, read it from setup.py automatically"""
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-pasqal/cirq_pasqal/_version.py b/cirq-pasqal/cirq_pasqal/_version.py
index fcc89fab9ee..8a67e53352b 100644
--- a/cirq-pasqal/cirq_pasqal/_version.py
+++ b/cirq-pasqal/cirq_pasqal/_version.py
@@ -14,4 +14,4 @@
 
 """Define version number here, read it from setup.py automatically"""
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-rigetti/cirq_rigetti/_version.py b/cirq-rigetti/cirq_rigetti/_version.py
index fcc89fab9ee..8a67e53352b 100644
--- a/cirq-rigetti/cirq_rigetti/_version.py
+++ b/cirq-rigetti/cirq_rigetti/_version.py
@@ -14,4 +14,4 @@
 
 """Define version number here, read it from setup.py automatically"""
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"
diff --git a/cirq-web/cirq_web/_version.py b/cirq-web/cirq_web/_version.py
index 301e76405a9..5be6e157e02 100644
--- a/cirq-web/cirq_web/_version.py
+++ b/cirq-web/cirq_web/_version.py
@@ -12,4 +12,4 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.2.0.dev"
+__version__ = "1.2.0"